[Client] Refactor: Improve readability

src/web/app/desktop/scripts/autocomplete.js

@@ -10,12 +10,14 @@ class Autocomplete {
 	 * 対象のテキストエリアを与えてインスタンスを初期化します。
 	 */
 	constructor(textarea) {
-		this.suggestion = null;
-		this.textarea = textarea;
-
+		// BIND ---------------------------------
 		this.onInput =  this.onInput.bind(this);
 		this.complete = this.complete.bind(this);
 		this.close =    this.close.bind(this);
+		// --------------------------------------
+
+		this.suggestion = null;
+		this.textarea = textarea;
 	}
 
 	/**