[Messages] Implement APIv2 in MessageFragment.

app/proguard/app.pro

@@ -39,4 +39,13 @@
 
 -keep class okhttp3.** { *; }
 
--keep class com.google.android.material.tabs.** {*;}
+-keep class com.google.android.material.tabs.** {*;}
+
+# ServiceLoader support
+        -keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
+-keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
+
+# Most of volatile fields are updated with AFU and should not be mangled
+-keepclassmembernames class kotlinx.** {
+    volatile <fields>;
+}