feat: remove !pattern.length for loading state

[TMSchipper]

What does it do?

Fix issue with not loading url patterns in bug report: issue-150

[changeset-bot]

🦋 Changeset detected

Latest commit: 60b5eff

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@pluginpal/webtools-core	Minor
@pluginpal/webtools-addon-menus	Major
@pluginpal/webtools-addon-redirects	Major
@pluginpal/webtools-addon-sitemap	Major

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[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 0.96%. Comparing base (f16963c) to head (60b5eff).

Files	Patch %	Lines
...ges/core/admin/screens/Patterns/ListPage/index.tsx	0.00%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@          Coverage Diff           @@
##           master    #154   +/-   ##
======================================
  Coverage    0.96%   0.96%           
======================================
  Files         189     189           
  Lines        2907    2907           
  Branches      396     396           
======================================
  Hits           28      28           
+ Misses       2708    2707    -1     
- Partials      171     172    +1     

Flag	Coverage Δ
unit	0.96% <0.00%> (ø)

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