Refactor: Enhance conversations and friends features

-   In `ConversationsScreen`, removed `isNeedToScrollToTop` and `onScrolledToTop`, and refactored toolbar container color logic. Added `NoItemsView` for empty conversation lists.
-   In `MainGraph`, added `onMessageClicked` for navigation to message history.
-   In `ApiEvent`, introduced `parseOrNull` for handling unknown event types.
-   In `ConversationsViewModel`, removed `scrollToTop` logic and refactored error handling.
-   In `FriendsViewModel`, refactored error handling and introduced `onErrorConsumed` and `handleError`.
-   In `FriendItem`, added an icon button to initiate sending a message to a friend.
-   In `strings.xml`, added or updated strings for session expiration, log out, refreshing, and empty friend lists.
-   In `RootScreen`, added `onMessageClicked` for navigating to messages.
-   In `FriendsList`, added `onMessageClicked` for handling message clicks.
-   In `MainScreen`, removed unused `MutableSharedFlow`.
-   In `FriendsScreen`, added support for showing errors, added `onMessageClicked`, and replaced `hazeChild` with `hazeEffect` and `hazeSource`.
-   In `FriendsNavigation`, added `onMessageClicked` for handling message clicks.
-   In `ConversationsNavigation`, removed the unused `scrollToTopFlow` parameter.
-   In `ErrorView`, added text alignment.
-   In `NoItemsView`, added support for a button and custom text.
-   In `LongPollUpdatesParser`, replaced try-catch with `parseOrNull`.

core/domain/src/main/kotlin/dev/meloda/fast/domain/LongPollUpdatesParser.kt

@@ -41,15 +41,9 @@ class LongPollUpdatesParser(
     fun parseNextUpdate(event: List<Any>) {
         val eventId = event.first().asInt()
 
-        val eventType: ApiEvent = try {
-            ApiEvent.parse(eventId)
-        } catch (e: Exception) {
-            e.printStackTrace()
-            Log.d("LongPollUpdatesParser", "parseNextUpdate: unknownEvent: $event")
-            return
-        }
+        when (val eventType =  ApiEvent.parseOrNull(eventId)) {
+            null -> Log.d("LongPollUpdatesParser", "parseNextUpdate: unknownEvent: $event")
 
-        when (eventType) {
             ApiEvent.MESSAGE_SET_FLAGS -> parseMessageSetFlags(eventType, event)
             ApiEvent.MESSAGE_CLEAR_FLAGS -> parseMessageClearFlags(eventType, event)
             ApiEvent.MESSAGE_NEW -> parseMessageNew(eventType, event)

core/model/src/main/kotlin/dev/meloda/fast/model/ApiEvent.kt

@@ -18,5 +18,6 @@ enum class ApiEvent(val value: Int) {
 
     companion object {
         fun parse(value: Int) = entries.first { it.value == value }
+        fun parseOrNull(value: Int) = entries.firstOrNull { it.value == value }
     }
 }

core/ui/src/main/kotlin/dev/meloda/fast/ui/components/ErrorView.kt

@@ -12,6 +12,7 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 
@@ -31,7 +32,8 @@ fun ErrorView(
     ) {
         Text(
             text = text,
-            style = MaterialTheme.typography.titleLarge
+            style = MaterialTheme.typography.titleLarge,
+            textAlign = TextAlign.Center
         )
 
         buttonText?.let {

core/ui/src/main/kotlin/dev/meloda/fast/ui/components/NoItemsView.kt

@@ -1,29 +1,51 @@
 package dev.meloda.fast.ui.components
 
-import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
 import dev.meloda.fast.ui.R
 
 @Composable
 fun NoItemsView(
     modifier: Modifier = Modifier,
-    customText: String? = null
+    customText: String? = null,
+    buttonText: String? = null,
+    onButtonClick: (() -> Unit)? = null,
 ) {
-    Box(
-        modifier = modifier.fillMaxSize(),
-        contentAlignment = Alignment.Center
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(horizontal = 16.dp),
+        verticalArrangement = Arrangement.Center,
+        horizontalAlignment = Alignment.CenterHorizontally
     ) {
         Text(
-            text = customText ?: stringResource(id = R.string.no_items),
-            style = MaterialTheme.typography.titleLarge
+            text = customText ?: stringResource(R.string.no_items),
+            style = MaterialTheme.typography.titleLarge,
+            textAlign = TextAlign.Center
         )
+
+        buttonText?.let {
+            Spacer(modifier = Modifier.height(12.dp))
+            Button(
+                onClick = { onButtonClick?.invoke() }
+            ) {
+                Text(text = buttonText)
+            }
+        }
     }
 }
 
@@ -31,6 +53,7 @@ fun NoItemsView(
 @Composable
 private fun NoItemsViewPreview() {
     NoItemsView(
-        customText = "Nothing here..."
+        customText = "Nothing here...",
+        buttonText = "Refresh"
     )
 }

core/ui/src/main/res/values-ru/strings.xml

@@ -128,7 +128,7 @@
     <string name="post_type_community">Запись сообщества</string>
     <string name="post_type_user">Запись пользователя</string>
     <string name="post_type_unknown">Запись на стене</string>
-    <string name="log_out">Выйти</string>
+    <string name="action_log_out">Выйти</string>
     <string name="confirm">Подтверждение</string>
     <string name="message_attachment_story_your_story">Ваша история</string>
     <string name="settings_dynamic_colors">Динамические цвета</string>
@@ -212,4 +212,7 @@
     <string name="captcha_exit_warning">Вы уверены? Процесс ввода капчи будет отменён</string>
     <string name="validation_exit_warning">Вы уверены? Процесс ввода кода-подтверждения будет отменён</string>
     <string name="action_authorize">Авторизоваться</string>
+    <string name="no_online_friends">Никого в сети</string>
+    <string name="try_again">Попробовать ещё раз</string>
+    <string name="session_expired">Срок действия сессии истёк</string>
 </resources>

core/ui/src/main/res/values/strings.xml

@@ -119,7 +119,7 @@
     <string name="post_type_community">Community post</string>
     <string name="post_type_user">User post</string>
     <string name="post_type_unknown">Post</string>
-    <string name="log_out">Log out</string>
+    <string name="action_log_out">Log out</string>
     <string name="confirm">Confirmation</string>
     <string name="sign_out_confirm">Signing out will delete all data related to this account from this device. Continue?</string>
     <string name="yes">Yes</string>
@@ -276,6 +276,8 @@
     <string name="warning_confirmation">Confirmation</string>
     <string name="captcha_exit_warning">Are you sure? Captcha process will be cancelled</string>
     <string name="validation_exit_warning">Are you sure? Validation process will be cancelled</string>
-    <string name="settings_general_enable_pull_to_refresh_title">Enable pull to refresh</string>
     <string name="action_authorize">Authorize</string>
+    <string name="no_online_friends">No one is online</string>
+    <string name="try_again">Try again</string>
+    <string name="session_expired">Session expired</string>
 </resources>