add: group channels, group channel members list, group channel renaming

crates/app/src/routes/api/v1/mod.rs

@@ -300,6 +300,10 @@ pub fn routes() -> Router {
             post(channels::channels::update_position_request),
         )
         .route("/channels/{id}", delete(channels::channels::delete_request))
+        .route(
+            "/channels/{id}/add",
+            post(channels::channels::add_member_request),
+        )
         .route(
             "/channels/{id}/kick",
             post(channels::channels::kick_member_request),