Refactor and optimize various components

- Updated RosettaFirebaseMessagingService to use IO dispatcher for blocking calls.
- Enhanced AvatarRepository with LRU caching and improved coroutine handling for avatar loading.
- Implemented timeout for websocket connection in UnlockScreen.
- Added selection mode functionality in ChatsListScreen with haptic feedback and improved UI for chat actions.
- Improved animated dots in AttachmentComponents for a smoother visual effect.
- Refactored image downloading and caching logic in ChatDetailComponents to streamline the process.
- Optimized SwipeBackContainer to simplify gesture handling.
- Adjusted swipe back behavior in OtherProfileScreen based on image viewer state.

app/src/main/java/com/rosetta/messenger/ui/auth/UnlockScreen.kt

@@ -54,6 +54,7 @@ import com.rosetta.messenger.ui.onboarding.PrimaryBlue
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.withTimeoutOrNull
 
 // Account model for dropdown
 data class AccountItem(
@@ -122,13 +123,11 @@ val decryptedPrivateKey = CryptoManager.decryptWithPassword(
         ProtocolManager.connect()
         
         // Wait for websocket connection
-        var waitAttempts = 0
-        while (ProtocolManager.state.value == ProtocolState.DISCONNECTED && waitAttempts < 50) {
-            kotlinx.coroutines.delay(100)
-            waitAttempts++
+        val connected = withTimeoutOrNull(5000) {
+            ProtocolManager.state.first { it != ProtocolState.DISCONNECTED }
         }
         val connectTime = System.currentTimeMillis() - connectStart
-if (ProtocolManager.state.value == ProtocolState.DISCONNECTED) {
+        if (connected == null) {
             onError("Failed to connect to server")
             onUnlocking(false)
             return