Fix deleteChars not updating the view

When deleting a character in a line and moving the cursor to
another line afterwards, the deletion is not rendered.
This commit adds the line where the character was deleted
to the refresh range to enforce an update

src/InputHandler.ts

@@ -497,6 +497,7 @@ export class InputHandler implements IInputHandler {
       this._terminal.buffer.lines.get(row).splice(this._terminal.buffer.x, 1);
       this._terminal.buffer.lines.get(row).push(ch);
     }
+    this._terminal.updateRange(this._terminal.buffer.y);
   }
 
   /**