feat(web): tidy the channel sidebar and let owners delete groups

web/src/store/workspace.ts

@@ -66,6 +66,7 @@ interface Actions {
   createThread: (name: string, groupId?: string) => Promise<string>;
   createGroup: typeof api.createGroup;
   renameGroup: typeof api.renameGroup;
+  deleteGroup: typeof api.deleteGroup;
   groupThread: typeof api.groupThread;
   renameThread: (threadId: string, name: string) => Promise<void>;
   setChannelHistory: typeof api.setChannelHistory;
@@ -112,6 +113,7 @@ export const useWorkspace = create<WorkspaceData & Actions>()(() => ({
   createThread: (name, groupId) => api.createThread(name, groupId),
   createGroup: (name) => api.createGroup(name),
   renameGroup: (id, name) => api.renameGroup(id, name),
+  deleteGroup: (id) => api.deleteGroup(id),
   groupThread: (id, groupId) => api.groupThread(id, groupId),
   renameThread: (threadId, name) => api.renameThread(threadId, name),
   setChannelHistory: (threadId, chatHistory, filesHistory) => api.setChannelHistory(threadId, chatHistory, filesHistory),