Refactor: Introduce FullScreenContainedLoader and use rememberUpdatedState

This commit introduces `FullScreenContainedLoader` and replaces usages of `FullScreenLoader` where appropriate.

It also updates several composables to use `rememberUpdatedState` for lambda parameters to ensure the latest versions are used.

Additionally, the following changes are included:
- Add a setting to show/hide the attachment button in the chat input bar.
- Implement navigation to `PhotoViewScreen` when a photo attachment is clicked in a message.
- Add "Copy link" and "Copy image" actions to `PhotoViewScreen`.
- Remove unused settings and their corresponding logic from `SettingsViewModel` and `UserSettings`.

core/datastore/src/main/kotlin/dev/meloda/fast/datastore/AppSettings.kt

@@ -96,6 +96,13 @@ object AppSettings {
             )
             set(value) = put(SettingsKeys.KEY_SHOW_EMOJI_BUTTON, value)
 
+        var showAttachmentButton: Boolean
+            get() = get(
+                SettingsKeys.KEY_SHOW_ATTACHMENT_BUTTON,
+                SettingsKeys.DEFAULT_VALUE_SHOW_ATTACHMENT_BUTTON
+            )
+            set(value) = put(SettingsKeys.KEY_SHOW_ATTACHMENT_BUTTON, value)
+
         var enableHaptic: Boolean
             get() = get(
                 SettingsKeys.KEY_ENABLE_HAPTIC,

core/datastore/src/main/kotlin/dev/meloda/fast/datastore/SettingsKeys.kt

@@ -11,6 +11,10 @@ object SettingsKeys {
     const val DEFAULT_VALUE_USE_CONTACT_NAMES = false
     const val KEY_SHOW_EMOJI_BUTTON = "show_emoji_button"
     const val DEFAULT_VALUE_KEY_SHOW_EMOJI_BUTTON = false
+    const val KEY_SHOW_ATTACHMENT_BUTTON = "show_attachment_button"
+    const val DEFAULT_VALUE_SHOW_ATTACHMENT_BUTTON = false
+    const val KEY_SHOW_RECORD_VOICE_BUTTON = "show_record_voice_button"
+    const val DEFAULT_VALUE_SHOW_RECORD_VOICE_BUTTON = false
 
     const val KEY_APPEARANCE = "appearance"
     const val KEY_APPEARANCE_MULTILINE = "appearance_multiline"

core/datastore/src/main/kotlin/dev/meloda/fast/datastore/UserSettings.kt

@@ -14,15 +14,10 @@ interface UserSettings {
     val enableDynamicColors: StateFlow<Boolean>
     val appLanguage: StateFlow<String>
 
-    val fastText: StateFlow<String>
-
     val sendOnlineStatus: StateFlow<Boolean>
 
-    val showAlertAfterCrash: StateFlow<Boolean>
     val longPollInBackground: StateFlow<Boolean>
     val useBlur: StateFlow<Boolean>
-    val showEmojiButton: StateFlow<Boolean>
-    val showTimeInActionMessages: StateFlow<Boolean>
     val useSystemFont: StateFlow<Boolean>
     val enableAnimations: StateFlow<Boolean>
     val showDebugCategory: StateFlow<Boolean>
@@ -35,15 +30,10 @@ interface UserSettings {
     fun onEnableDynamicColorsChanged(enable: Boolean)
     fun onAppLanguageChanged(language: String)
 
-    fun onFastTextChanged(text: String)
-
     fun onSendOnlineStatusChanged(send: Boolean)
 
-    fun onShowAlertAfterCrashChanged(show: Boolean)
     fun onLongPollInBackgroundChanged(inBackground: Boolean)
     fun onUseBlurChanged(use: Boolean)
-    fun onShowEmojiButtonChanged(show: Boolean)
-    fun onShowTimeInActionMessagesChanged(show: Boolean)
     fun onUseSystemFontChanged(use: Boolean)
     fun onShowDebugCategoryChanged(show: Boolean)
 }
@@ -58,16 +48,11 @@ class UserSettingsImpl : UserSettings {
     override val enableDynamicColors = MutableStateFlow(AppSettings.Appearance.enableDynamicColors)
     override val appLanguage = MutableStateFlow(AppSettings.Appearance.appLanguage)
 
-    override val fastText = MutableStateFlow(AppSettings.Features.fastText)
-
     override val sendOnlineStatus = MutableStateFlow(AppSettings.Activity.sendOnlineStatus)
 
-    override val showAlertAfterCrash = MutableStateFlow(AppSettings.Debug.showAlertAfterCrash)
-    override val longPollInBackground = MutableStateFlow(AppSettings.Experimental.longPollInBackground)
+    override val longPollInBackground =
+        MutableStateFlow(AppSettings.Experimental.longPollInBackground)
     override val useBlur = MutableStateFlow(AppSettings.Experimental.useBlur)
-    override val showEmojiButton = MutableStateFlow(AppSettings.General.showEmojiButton)
-    override val showTimeInActionMessages =
-        MutableStateFlow(AppSettings.Experimental.showTimeInActionMessages)
     override val useSystemFont = MutableStateFlow(AppSettings.Appearance.useSystemFont)
     override val enableAnimations = MutableStateFlow(AppSettings.Experimental.moreAnimations)
     override val showDebugCategory = MutableStateFlow(AppSettings.Debug.showDebugCategory)
@@ -96,18 +81,10 @@ class UserSettingsImpl : UserSettings {
         appLanguage.value = language
     }
 
-    override fun onFastTextChanged(text: String) {
-        fastText.value = text
-    }
-
     override fun onSendOnlineStatusChanged(send: Boolean) {
         sendOnlineStatus.value = send
     }
 
-    override fun onShowAlertAfterCrashChanged(show: Boolean) {
-        showAlertAfterCrash.value = show
-    }
-
     override fun onLongPollInBackgroundChanged(inBackground: Boolean) {
         longPollInBackground.value = inBackground
     }
@@ -116,14 +93,6 @@ class UserSettingsImpl : UserSettings {
         useBlur.value = use
     }
 
-    override fun onShowEmojiButtonChanged(show: Boolean) {
-        showEmojiButton.value = show
-    }
-
-    override fun onShowTimeInActionMessagesChanged(show: Boolean) {
-        showTimeInActionMessages.value = show
-    }
-
     override fun onUseSystemFontChanged(use: Boolean) {
         useSystemFont.value = use
     }