cleanup: trim trailing whitespace (#11136)

* cleanup: trim trailing whitespace

* update(`.editorconfig`)

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/misskey-js/src/streaming.ts

@@ -218,7 +218,7 @@ class Pool {
 		this.dec = this.dec.bind(this);
 		this.connect = this.connect.bind(this);
 		this.disconnect = this.disconnect.bind(this);
-	
+
 		this.channel = channel;
 		this.stream = stream;
 		this.id = id;