refactor(chat): simplify adult-only mode checks in MultiChatDialog.vue

- Removed redundant checks for adult-only mode when opening the chat dialog and connecting the chat socket.
- Streamlined the logic to enhance readability and maintainability of the component.

frontend/src/dialogues/chat/MultiChatDialog.vue

@@ -768,10 +768,6 @@ export default {
             this.announcedRoomEnter = false;
             this.$refs.dialog.open();
             this.opened = true;
-            if (this.adultOnlyMode && !this.resolveInitialRoomName()) {
-                this.setStatus('idle');
-                return;
-            }
             // Stelle die WS-Verbindung her, wenn der Dialog geöffnet wird
             this.connectChatSocket();
             // Add network event listeners
@@ -779,11 +775,6 @@ export default {
             window.addEventListener('offline', this.onOffline);
         },
         connectChatSocket() {
-            if (this.adultOnlyMode && !this.resolveInitialRoomName()) {
-                console.warn('[Chat WS] adult mode without selected room - aborting connect');
-                this.setStatus('idle');
-                return;
-            }
             if (this.connectRacing) return; // avoid overlapping races
             try { this.chatWs?.close(1000, 'reconnect'); } catch (_) { }
             this.chatWs = null;