fix: Make NaN as default/empty number value in binder

[krissvaa]

Make NaN as default/empty number value in binder

After form the number fields are empty by default:

Fixes #1827

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9cbb15d) 95.33% compared to head (2235fec) 95.30%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1953      +/-   ##
==========================================
- Coverage   95.33%   95.30%   -0.03%     
==========================================
  Files          52       52              
  Lines        3495     3496       +1     
  Branches      526      527       +1     
==========================================
  Hits         3332     3332              
  Misses        129      129              
- Partials       34       35       +1     

Flag	Coverage Δ
unittests	95.30% <100.00%> (-0.03%)	⬇️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[cromoteca]

Tested it locally. Touching a numeric field without typing a number shows a validation error, but I think that's the expected behavior.

[sonarcloud]

Quality Gate failed

Failed conditions

20.8% Duplication on New Code (required ≤ 3%)

See analysis details on SonarCloud

[vaadin-bot]

This ticket/PR has been released with Hilla 24.4.0.alpha3 and is also targeting the upcoming stable 24.4.0 version.