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/App.vue

@@ -16,6 +16,7 @@
     <ImprintDialog ref="imprintDialog" />
     <ShowImageDialog ref="showImageDialog" />
     <MessageDialog ref="messageDialog" />
+    <MultiChatDialog ref="multiChatDialog" />
   </div>
 </template>
 
@@ -37,6 +38,7 @@ import ErrorDialog from './dialogues/standard/ErrorDialog.vue';
 import ImprintDialog from './dialogues/standard/ImprintDialog.vue';
 import ShowImageDialog from './dialogues/socialnetwork/ShowImageDialog.vue';
 import MessageDialog from './dialogues/standard/MessageDialog.vue';
+import MultiChatDialog from './dialogues/chat/MultiChatDialog.vue';
 
 export default {
   name: 'App',
@@ -63,6 +65,7 @@ export default {
     ImprintDialog,
     ShowImageDialog,
     MessageDialog,
+    MultiChatDialog,
   },
   created() {
     this.$i18n.locale = this.$store.getters.language;