Editor e2e PageObject

[DavidSouther]

No description provided.

[mmatsumoto1026]

After executing chipPage.editor.write in the test "toggleMonaco re-enables Monaco editor for tests that need it" of editor-panel.spec.ts, the code text in the Monaco editor written by key press simulator will break as shown in below.

CIP nd
	IN, b;
	  outot;

		PARTS:
		   Nandaa = ot=);
		       Not(n=,out=ut);
		       }

The method this.page.keyboard.type(text) in Monaco may triggers several automated features like auto-completion.

With using this.page.keyboard.insertText(text), We can avoid the individual key-event logic for most editor side-effects, allowing the entire block of text to be inserted cleanly into the Monaco.