fix(tabs): fix disable animation

[messenjer]

Fixes #863

Proposed Changes

Replace disabled by css, the prop to disable transition is css https://vuejs.org/api/built-in-components.html#transition

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.62%. Comparing base (484cfe8) to head (6748f19).
Report is 32 commits behind head on develop.

❗ Current head 6748f19 differs from pull request most recent head e58670e. Consider uploading reports for the commit e58670e to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##           develop     #870       +/-   ##
============================================
- Coverage    56.71%   10.62%   -46.10%     
============================================
  Files           30      110       +80     
  Lines         1511     5281     +3770     
  Branches       544     1916     +1372     
============================================
- Hits           857      561      -296     
- Misses         654     3743     +3089     
- Partials         0      977      +977     

Flag	Coverage Δ
oruga-next	10.62% <ø> (-46.10%)	⬇️

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[messenjer]

I fixed also the same issue in the StepItem component : e58670e