fix(SelectInput): alignments

[lisalupi]

Summary

Type

• Bug

Summarize concisely:

What is expected?

SelectInput:
- add a transparent border when disabled to avoid sizing differences between read-only, default, and disabled states
- fix options alignment with checkbox and OptionalInfo

Before (no border when disabled):

Enregistrement.de.l.ecran.2026-06-08.a.10.07.55.mov

After (border when disabled):

Enregistrement.de.l.ecran.2026-06-08.a.10.07.29.mov

[changeset-bot]

🦋 Changeset detected

Latest commit: f0a340e

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

This PR includes changesets to release 3 packages

Name	Type
@ultraviolet/ui	Patch
@ultraviolet/form	Patch
@ultraviolet/nextjs	Patch

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.06%. Comparing base (48a44bb) to head (f0a340e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6516      +/-   ##
==========================================
+ Coverage   82.37%   92.06%   +9.69%     
==========================================
  Files          44      536     +492     
  Lines         658     9607    +8949     
  Branches      185     3553    +3368     
==========================================
+ Hits          542     8845    +8303     
- Misses        116      762     +646     

Files with missing lines	Coverage Δ
...nents/SelectInput/components/Dropdown/Dropdown.tsx	87.85% <100.00%> (ø)
...ponents/SelectInput/components/Dropdown/Option.tsx	100.00% <100.00%> (ø)
...ts/SelectInput/components/Dropdown/dropdown.css.ts	100.00% <100.00%> (ø)
.../SelectInput/components/SelectBar/selectBar.css.ts	100.00% <ø> (ø)
packages/ui/src/components/SelectInput/index.tsx	100.00% <ø> (ø)
...ckages/ui/src/components/SelectInput/styles.css.ts	100.00% <ø> (ø)

... and 486 files with indirect coverage changes

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[jsulpis]

the alignment is fixed for the "left" placement but not for the "right" : the elements are pushed at the top and not vertically aligned

[lisalupi]

the alignment is fixed for the "left" placement but not for the "right" : the elements are pushed at the top and not vertically aligned

I was told to align with the top, not center