add: connect to socket by community

direct messages/groups connect by channel id, everything else should connect by channel with the "is_channel" header set to true

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

@@ -290,7 +290,7 @@ pub fn routes() -> Router {
         )
         // messages
         .route(
-            "/channels/{id}/ws",
+            "/_connect/{id}",
             any(channels::messages::subscription_handler),
         )
         .route("/messages", post(channels::messages::create_request))