[DSG] add warning after editing items if it would trigger a restart of the workbench

Description of problem:

When users edit a workbench or a cluster storage (attached to a workbench), the workbench gets restarted (pod stopped and started again). 

UI should warn users about the consequent restart of the workbench after a change.

Prerequisites (if any, like setup, operators/versions):

Create a DS Project

Create a workbench

Steps to Reproduce

1. go to your wokrbench
2. click on 3-dots menu on the right
3. click Edit action 
4. change settings like Image, deployment size, env variables(add/remove), storages

Actual results:

worbench gets restarted without informing users

Expected results:

UI informs users that the workbench will be restarted after applying the changes

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

RHODS v1.20.0-11

Workaround:

Additional info: