[Filters] Add Support For Unpublish Filters in Server

[theBeginner86]

Notes for Reviewers

This PR adds API and handlers for unpublishing catalog filters from Meshery UI

This PR fixes #

Signed commits

• Yes, I signed my commits.

[github-actions]

[l5io]

🚀 Preview for commit 2d06d8c at: https://649c3145aaae6012653d3bf1--meshery-docs-preview.netlify.app

[Chadha93]

LGTM

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +9.67 🎉

Comparison is base (01793fc) 5.32% compared to head (2d06d8c) 14.99%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7970      +/-   ##
==========================================
+ Coverage    5.32%   14.99%   +9.67%     
==========================================
  Files         124      124              
  Lines       17172    17193      +21     
==========================================
+ Hits          914     2578    +1664     
+ Misses      16086    14150    -1936     
- Partials      172      465     +293     

Flag	Coverage Δ
gointegrationtests	5.31% <0.00%> (-0.01%)	⬇️
unittests	11.02% <0.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/handlers/meshery_filter_handler.go	0.00% <0.00%> (ø)
server/router/server.go	0.00% <0.00%> (ø)

... and 37 files with indirect coverage changes

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