When user can't list return empty

[yonahd]

What this PR does / why we need it?

When user can't list namespaces return empty instead of exiting

PR Checklist

• This PR adds K8s exceptions (false positives)
• This PR adds new code
• This PR includes tests for new/existing code
• This PR adds docs

[yonahd]

@hagay3 Is this good enough?

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 44.43%. Comparing base (0e398dd) to head (d7bd103).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/filters/options.go	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #360   +/-   ##
=======================================
  Coverage   44.43%   44.43%           
=======================================
  Files          61       61           
  Lines        3241     3241           
=======================================
  Hits         1440     1440           
  Misses       1574     1574           
  Partials      227      227           

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