Add fullscreen suggestion edit UX with admin overrides

wwwroot/js/api.js

@@ -38,6 +38,7 @@ export const api = {
   mySuggestions: () => request("/api/suggestions/mine"),
   createSuggestion: (payload) => request("/api/suggestions", { method: "POST", body: payload }),
   deleteSuggestion: (id) => request(`/api/suggestions/${id}`, { method: "DELETE" }),
+  updateSuggestion: (id, payload) => request(`/api/suggestions/${id}`, { method: "PUT", body: payload }),
   allSuggestions: () => request("/api/suggestions/all"),
 
   myVotes: () => request("/api/votes/mine"),