UI: fix date picker for custom time range

[sudo87]

Description

This PR fixes #12309

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):

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 17.60%. Comparing base (56a39e6) to head (be9a493).
⚠️ Report is 1 commits behind head on 4.20.

Additional details and impacted files

@@             Coverage Diff              @@
##               4.20   #12351      +/-   ##
============================================
+ Coverage     16.23%   17.60%   +1.36%     
- Complexity    13378    15669    +2291     
============================================
  Files          5657     5915     +258     
  Lines        498866   529966   +31100     
  Branches      60545    64738    +4193     
============================================
+ Hits          81011    93304   +12293     
- Misses       408821   426193   +17372     
- Partials       9034    10469    +1435     

Flag	Coverage Δ
uitests	3.58% <ø> (-0.43%)	⬇️
unittests	18.67% <ø> (+1.58%)	⬆️

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[sudo87]

@blueorangutan ui

[blueorangutan]

@sudo87 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/12351 (QA-JID-836)

[sudo87]

@blueorangutan package

[blueorangutan]

@sudo87 a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.