feat: remove previous disappearing messages change info message when adding a new one

Session/Conversations/Settings/ThreadDisappearingMessagesViewModel.swift

@@ -459,6 +459,12 @@ class ThreadDisappearingMessagesViewModel: SessionTableViewModel<ThreadDisappear
             _ = try updatedConfig.saved(db)
             
             let nowInMs: Double = floor(Date().timeIntervalSince1970 * 1000)
+            
+            _ = try Interaction
+                .filter(Interaction.Columns.threadId == threadId)
+                .filter(Interaction.Columns.variant == Interaction.Variant.infoDisappearingMessagesUpdate)
+                .deleteAll(db)
+            
             let interaction: Interaction = try Interaction(
                 threadId: threadId,
                 authorId: getUserHexEncodedPublicKey(db),

SessionMessagingKit/Sending & Receiving/Message Handling/MessageReceiver+ExpirationTimers.swift

@@ -48,6 +48,12 @@ extension MessageReceiver {
         
         try remoteConfig.save(db)
         
+        // Remove previous info messages
+        _ = try Interaction
+            .filter(Interaction.Columns.threadId == thread.id)
+            .filter(Interaction.Columns.variant == Interaction.Variant.infoDisappearingMessagesUpdate)
+            .deleteAll(db)
+        
         // Add an info message for the user
         _ = try Interaction(
             serverHash: nil, // Intentionally null so sync messages are seen as duplicates

SessionMessagingKit/Sending & Receiving/MessageReceiver.swift

@@ -365,6 +365,11 @@ public enum MessageReceiver {
         )
         
         _ = try remoteConfig.save(db)
+        
+        _ = try Interaction
+            .filter(Interaction.Columns.threadId == threadId)
+            .filter(Interaction.Columns.variant == Interaction.Variant.infoDisappearingMessagesUpdate)
+            .deleteAll(db)
 
         _ = try Interaction(
             serverHash: message.serverHash,