ZEPPELIN-4335 Deleting a Notebook is vulnerable to XSS attach

[Akhilsnaik]

What is this PR for?

Fix of : ZEPPELIN-4335 Deleting a Notebook is vulnerable to XSS attach

Issue reproduction steps :

create a notebook
give the permission to notebook as : <script>alert('hi')</script> (press space after writing this, not enter key)
after this, try to delete the notebook, the BootstrapDialog that popups stating insufficient privilages is vulnerable to XSS attack

What type of PR is it?

BUG FIX ZEPPELIN-4335

Todos

What is the Jira issue?

https://issues.apache.org/jira/browse/ZEPPELIN-4335

How should this be tested?

Test as per reproduction steps :

create a notebook
give the permission to notebook as : <script>alert('hi')</script> (press space after writing this, not enter key)
after this, try to delete the notebook, the BootstrapDialog that popups stating insufficient privilages is vulnerable to XSS attack

Questions:

• Does the licenses files need update? No
• Is there breaking changes for older versions? No
• Does this needs documentation? No

[Akhilsnaik]

deleting this PR as its duplicate of #3452 .