chore: remove alias comments (#6816)

* chore: remove alias comments

* chore: format

* chore: remove extra newlines

* chore: fix bad replaces

core/keyboard_nav/cursor.ts

@@ -22,13 +22,10 @@ import {Marker} from './marker.js';
 /**
  * Class for a cursor.
  * A cursor controls how a user navigates the Blockly AST.
- *
- * @alias Blockly.Cursor
  */
 export class Cursor extends Marker {
   override type = 'cursor';
 
-  /** @alias Blockly.Cursor */
   constructor() {
     super();
   }