Msg Retry fixes, channel message fixes. Notification fixes. Make more desktop friendly. Enhance retry algo. Fix predicted location clustering add retries to reactions and fix the reactions in private DMS centralize and cleanup code in var areas

lib/models/channel_message.dart

@@ -36,6 +36,7 @@ class ChannelMessage {
   final List<Uint8List> pathVariants;
   final int? channelIndex;
   final String messageId;
+  final String? packetHash;
   final String? replyToMessageId;
   final String? replyToSenderName;
   final String? replyToText;
@@ -55,6 +56,7 @@ class ChannelMessage {
     List<Uint8List>? pathVariants,
     this.channelIndex,
     String? messageId,
+    this.packetHash,
     this.replyToMessageId,
     this.replyToSenderName,
     this.replyToText,
@@ -79,6 +81,7 @@ class ChannelMessage {
     int? pathLength,
     Uint8List? pathBytes,
     List<Uint8List>? pathVariants,
+    String? packetHash,
     String? replyToMessageId,
     String? replyToSenderName,
     String? replyToText,
@@ -98,6 +101,7 @@ class ChannelMessage {
       pathVariants: pathVariants ?? this.pathVariants,
       channelIndex: channelIndex,
       messageId: messageId,
+      packetHash: packetHash ?? this.packetHash,
       replyToMessageId: replyToMessageId ?? this.replyToMessageId,
       replyToSenderName: replyToSenderName ?? this.replyToSenderName,
       replyToText: replyToText ?? this.replyToText,