Add end meeting API endpoint to API URLs

Introduce a new API endpoint for ending meetings in the API_URLS file, enhancing the meeting management functionality. This addition complements the existing start meeting endpoint, providing a complete set of meeting control options.

lib/api_urls.ts

@@ -30,6 +30,7 @@ export const API_ENDPOINTS = {
     checkDateAvailability: `${API_BASE_URL}/meetings/availability/check/`,
     availabilityOverview: `${API_BASE_URL}/meetings/availability/overview/`,
     startMeeting: (id: string) => `${API_BASE_URL}/meetings/appointments/${id}/start/`,
+    endMeeting: (id: string) => `${API_BASE_URL}/meetings/appointments/${id}/end/`,
   },
 } as const;