Close #3444 Added code to delete params files

[CrochetFeve0251]

Description

In this PR we fix a problem in the cache cleaning where params cache from homepage are not cleared when a post is updated.
This has been fixed by adding a check on folders starting with # and if some exist we delete them.

Fixes #3444

Type of change

• Bug fix (non-breaking change which fixes an issue)

Is the solution different from the one proposed during the grooming?

No.

How Has This Been Tested?

• Manual Test

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[Mai-Saad]

@CrochetFeve0251 Thanks for the PR. Can see the qs cache for home is deleted with cache qs, dedicated cache qs when edit home, adding a new post, updating a post, deleting a post, clear the cache of this URL in page list or purge this URL from page view. But clear used CSS for this URL will clear the cache of home but not the home qs cache. I think it shall be deleted in this case too @piotrbak @CrochetFeve0251 what do you think?

[piotrbak]

Yes, it should be included.

[CrochetFeve0251]

Closed in favor of #6234. (I moved the modifications to the new code as I spotted some problems due to old code)