Hide the profile picture and username in DMs

frontend/src/ui/panels/DMPanel.ts

@@ -28,6 +28,10 @@ export class DMPanel extends MessagePanel {
         super("dm", user, callbacks, onStateChange);
     }
 
+    isDm(): boolean {
+        return true;
+    }
+
     async activate(): Promise<void> {
         if (this.dmData && !this.messagesLoaded) {
             await this.loadMessages();

frontend/src/ui/panels/MessagePanel.ts

@@ -49,6 +49,7 @@ export abstract class MessagePanel {
     abstract deactivate(): void;
     abstract loadMessages(): Promise<void>;
     abstract sendMessage(content: string): Promise<void>;
+    abstract isDm(): boolean;
 
     // Common methods
     protected updateState(updates: Partial<MessagePanelState>): void {

frontend/src/ui/panels/PublicChatPanel.ts

@@ -23,6 +23,10 @@ export class PublicChatPanel extends MessagePanel {
         });
     }
 
+    isDm(): boolean {
+        return false;
+    }
+
     async activate(): Promise<void> {
         if (!this.messagesLoaded) {
             await this.loadMessages();