fix: single mode should show the correct timer values

if a mode is invalid we return no timer options

ts/components/conversation/right-panel/overlay/disappearing-messages/OverlayDisappearingMessages.tsx

@@ -89,7 +89,7 @@ export const OverlayDisappearingMessages = () => {
   const weAreAdmin = useSelectedWeAreAdmin();
 
   const [modeSelected, setModeSelected] = useState<DisappearingMessageConversationType | undefined>(
-    expirationType
+    hasOnlyOneMode ? singleMode : expirationType
   );
 
   const [timeSelected, setTimeSelected] = useState(expireTimer || 0);

ts/hooks/useParamSelector.ts

@@ -331,7 +331,7 @@ export function useTimerOptionsByMode(disappearingMessageMode?: string, hasOnlyO
           );
         });
       default:
-        return options;
+        return [];
     }
   });
 }