Convert existing Script Runner dialogs to Composition API

[EmilyRagan]

The is the beginning of the transition to Composition API, starting with Script Runner. Existing dialog components were very easy to convert. The diffs are unfortunately too great to sync up the lines, but the changes are straightforward:

• Props have the same type information as before
• Prop values are now accessed via props.<propName> within the script, instead of this.<propName>
• Computed values are now accessed via <computedName>.value within the script, instead of this.<computedValue>
• Use defineModel over explicit computed with emit where appropriate
• Data values that are mutable are defined with ref, immutable values are just const
• Data values are accessed and updated via <dataName>.value within the script, instead of this.<dataName>
• Methods are now accessed just by their name, without this.
• created lifecycle hook is replaced by onMounted for some cases, immediate initialization in other cases
• Promise chaining was updated to use async/await

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.26%. Comparing base (b0213e5) to head (01804a8).
⚠️ Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2828      +/-   ##
==========================================
+ Coverage   78.21%   78.26%   +0.04%     
==========================================
  Files         673      673              
  Lines       55239    55239              
  Branches      728      728              
==========================================
+ Hits        43206    43233      +27     
+ Misses      11955    11928      -27     
  Partials       78       78              

Flag	Coverage Δ
python	79.47% <ø> (-0.01%)	⬇️
ruby-api	83.58% <ø> (+0.65%)	⬆️
ruby-backend	81.37% <ø> (ø)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
3 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud