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`.

app/src/main/kotlin/dev/meloda/fast/presentation/MainScreen.kt

@@ -47,8 +47,6 @@ import dev.meloda.fast.ui.theme.LocalBottomPadding
 import dev.meloda.fast.ui.theme.LocalHazeState
 import dev.meloda.fast.ui.theme.LocalThemeConfig
 import dev.meloda.fast.ui.util.ImmutableList
-import kotlinx.coroutines.channels.BufferOverflow
-import kotlinx.coroutines.flow.MutableSharedFlow
 
 @OptIn(ExperimentalHazeMaterialsApi::class)
 @Composable
@@ -58,6 +56,7 @@ fun MainScreen(
     onSettingsButtonClicked: () -> Unit = {},
     onConversationItemClicked: (conversationId: Int) -> Unit = {},
     onPhotoClicked: (url: String) -> Unit = {},
+    onMessageClicked: (userId: Int) -> Unit = {},
     viewModel: MainViewModel
 ) {
     val currentTheme = LocalThemeConfig.current
@@ -70,14 +69,6 @@ fun MainScreen(
         mutableIntStateOf(1)
     }
 
-    val sharedFlow = remember {
-        MutableSharedFlow<Int>(
-            replay = 0,
-            extraBufferCapacity = 1,
-            onBufferOverflow = BufferOverflow.DROP_OLDEST
-        )
-    }
-
     Scaffold(
         bottomBar = {
             NavigationBar(
@@ -108,8 +99,6 @@ fun MainScreen(
                                         inclusive = true
                                     }
                                 }
-                            } else {
-                                sharedFlow.tryEmit(index)
                             }
                         },
                         icon = {
@@ -176,13 +165,13 @@ fun MainScreen(
                         friendsScreen(
                             onError = onError,
                             navController = navController,
-                            onPhotoClicked = onPhotoClicked
+                            onPhotoClicked = onPhotoClicked,
+                            onMessageClicked = onMessageClicked
                         )
                         conversationsScreen(
                             onError = onError,
                             onConversationItemClicked = onConversationItemClicked,
                             onPhotoClicked = onPhotoClicked,
-                            scrollToTopFlow = sharedFlow,
                             navController = navController,
                         )
                         profileScreen(