Add password reset localization and chat configuration

- Implemented German and English localization for password reset functionality.
- Added WebSocket URL resolution logic in chat services to support various environments and configurations.
- Created centralized chat configuration for event keys and payload mappings.
- Developed RoomsView component for admin chat room management, including create, edit, and delete functionalities.

frontend/src/api/chatApi.js

@@ -0,0 +1,6 @@
+import apiClient from "@/utils/axios.js";
+
+export const fetchPublicRooms = async () => {
+  const response = await apiClient.get("/api/chat/rooms");
+  return response.data; // expecting array of { id, title, ... }
+};