refactor(menu): update api

[mlmoravek]

This is part of #606

In this PR, I refactored the menu component from the Options API to the Composition API.

Proposed Changes

• Update Menu to composition api
  • removed MenuList component
• Update docs
• Update provide/inject composable

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[codecov]

Codecov Report

Attention: 27 lines in your changes are missing coverage. Please review.

Comparison is base (fd7f324) 62.86% compared to head (a25364f) 62.73%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #627      +/-   ##
===========================================
- Coverage    62.86%   62.73%   -0.14%     
===========================================
  Files           87       87              
  Lines         5587     5597      +10     
  Branches      1590     1595       +5     
===========================================
- Hits          3512     3511       -1     
- Misses        1964     1975      +11     
  Partials       111      111              

Flag	Coverage Δ
oruga	65.92% <ø> (ø)
oruga-next	49.20% <0.00%> (-0.56%)	⬇️

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

Files	Coverage Δ
...es/oruga-next/src/composables/useParentProvider.ts	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes

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