feat(xo-core): add UiInput component

[OlivierFL]

Description

First implementation of the UiInput component. For now the component is just an input of type search, as it is needed for the upcoming SearchBar component. Other implementations will be made later.

Screenshots

Checklist

• Commit
  • Title follows commit conventions
  • Reference the relevant issue (Fixes #007, See xoa-support#42, See https://...)
  • If bug fix, add Introduced by
• Changelog
  • If visible by XOA users, add changelog entry
  • Update "Packages to release" in CHANGELOG.unreleased.md
• PR
  • If UI changes, add screenshots
  • If not finished or not tested, open as Draft

[ByScripts]

@pdonias @MathieuRA Can you merge? Thanks.