fix: emit resume event, silent disconnects, error event param (#3192)

* src: Fix shardResumed event not being emitted

* docs: Document Client#error again

* src: Fix onError due to incorrect typings

* src: handle onError properly for both uws and ws

* src: Try to fix silent disconnects when using uWs

* fix(WebSocketShard): uws emits plain objects, not errors

Emitting line of code: 39aa429f94/src/uws.js (L80-L83)
Listener attaching is here: https://github.com/discordjs/uws/blob/master/src/uws.js#L128
For reference, found a clue here: https://github.com/discordjs/discord.js/issues/1528

src/sharding/ShardClientUtil.js

@@ -181,6 +181,11 @@ class ShardClientUtil {
   _respond(type, message) {
     this.send(message).catch(err => {
       err.message = `Error when sending ${type} response to master process: ${err.message}`;
+      /**
+       * Emitted when the client encounters an error.
+       * @event Client#error
+       * @param {Error} error The error encountered
+       */
       this.client.emit(Events.ERROR, err);
     });
   }