Refactor tooltip

[mlmoravek]

This is part of #606

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

Proposed Changes

• Update Tooltip to composition api
• Update docs

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (922f880) 62.71% compared to head (d2d59d0) 62.62%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #631      +/-   ##
===========================================
- Coverage    62.71%   62.62%   -0.09%     
===========================================
  Files           87       87              
  Lines         5598     5598              
  Branches      1595     1595              
===========================================
- Hits          3511     3506       -5     
- Misses        1976     1981       +5     
  Partials       111      111              

Flag	Coverage Δ
oruga	65.92% <ø> (ø)
oruga-next	48.69% <ø> (-0.47%)	⬇️

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see 2 files with indirect coverage changes

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