feat: Add emoji picker functionality to MessageInputBar and hide keyboard when picker is open

app/src/main/java/com/rosetta/messenger/ui/chats/ChatDetailScreen.kt

@@ -16,10 +16,12 @@ import androidx.compose.material.icons.filled.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
+import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
@@ -391,6 +393,7 @@ private fun MessageBubble(
  * + Плавная анимация самолетика
  * + Эмодзи пикер
  */
+@OptIn(ExperimentalComposeUiApi::class)
 @Composable
 private fun MessageInputBar(
     value: String,
@@ -403,6 +406,14 @@ private fun MessageInputBar(
 ) {
     // Состояние эмодзи пикера
     var showEmojiPicker by remember { mutableStateOf(false) }
+    val keyboardController = LocalSoftwareKeyboardController.current
+    
+    // Скрываем клавиатуру когда открыт эмодзи пикер
+    LaunchedEffect(showEmojiPicker) {
+        if (showEmojiPicker) {
+            keyboardController?.hide()
+        }
+    }
     
     // Цвета для glass morphism эффекта
     val glassBackground = if (isDarkTheme)