Expose invitation group tags and localized Android titles

tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt

@@ -67,7 +67,7 @@ data class Message(val id: Long, val author: String, val text: String, val ts: L
                    val imageWidth: Int = 0, val imageHeight: Int = 0,
                    val videoWidth: Int = 0, val videoHeight: Int = 0, val videoDurationMs: Int = 0,
                    val downloadState: String = "", /* "", "downloading", "downloaded", "error" */
-                   val deliveryStatusRes: Int = 0)
+                   val deliveryStatusRes: Int = 0, val inviteGroupName: String? = null)
 
 data class ChatMember(val nodeId: Long, val name: String, val online: Boolean = false,
                       val isAdmin: Boolean = false, val isSuper: Boolean = false,
@@ -592,6 +592,7 @@ class ChatRepository {
                     ts = obj.optLong("ts", 0),
                     isOutgoing = outgoing,
                     contentType = obj.optString("content_type", "text/plain"),
+                    inviteGroupName = if (obj.optString("ct") == "invite") obj.getJSONObject("tags").getString("group_name") else null,
                     filePath = path,
                     fileSize = obj.optLong("media_size"),
                     waveform = obj.optString("waveform").map { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(it).coerceAtLeast(0) / 63f },