adding setting of active_at to hide unapproved messages.

ts/models/conversation.ts

@@ -1407,6 +1407,10 @@ export class ConversationModel extends Backbone.Model<ConversationAttributes> {
       this.set({
         isApproved: value,
       });
+
+      // to exclude the conversation from left pane messages list and message requests
+      if (value === false) this.set({ active_at: undefined });
+
       await this.commit();
     }
   }

ts/receiver/queuedJob.ts

@@ -314,8 +314,8 @@ async function handleRegularMessage(
   if (type === 'outgoing') {
     handleSyncedReceipts(message, conversation);
 
-    // TODO: Can we assume sync receipts are always from linked device outgoings?
+    // assumes sync receipts are always from linked device outgoings?
-    if (dataMessage.body !== 'unapprove') conversation.setIsApproved(true);
+    conversation.setIsApproved(true);
   }
 
   const conversationActiveAt = conversation.get('active_at');