Indent level support added for while/endwhile

[webspam]

New feature #indent added: while endwhile will now indent like if endif.

Testing: Not.. sure how much it needs tbh. Edited VS Markplace's cached extension directly.. working as expected.

Checklist before doing the merge commit:

• [ ] Review code in PR
• [ ] Testing
• [ ] Check format of title for CI (make sure it has valid <type>: <subject> format)
• [ ] Use Squash and Commit