ui: clear selected resource when no items in listview

[shwstppr]

Description

Fixes #11922

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

createbackup-resource-fix.mp4

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 17.56%. Comparing base (bfc4f60) to head (2ab7188).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main   #11946   +/-   ##
=========================================
  Coverage     17.56%   17.56%           
- Complexity    15540    15541    +1     
=========================================
  Files          5909     5909           
  Lines        529045   529055   +10     
  Branches      64615    64617    +2     
=========================================
+ Hits          92933    92938    +5     
- Misses       425657   425662    +5     
  Partials      10455    10455           

Flag	Coverage Δ
uitests	3.58% <ø> (-0.01%)	⬇️
unittests	18.63% <ø> (+<0.01%)	⬆️

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[shwstppr]

@blueorangutan ui

[blueorangutan]

@shwstppr a Jenkins job has been kicked to build UI QA env. I'll keep you posted as I make progress.

[blueorangutan]

UI build: ✔️
Live QA URL: https://qa.cloudstack.cloud/simulator/pr/11946 (QA-JID-785)