Add Toolbar button component

[tvdeyen]

What is this pull request for?

Instead of rendering a partial with logic inside of private methods in the Alchemy::Admin::BaseHelper we introduce a well tested VieComponent.

Checklist

• [x] I have followed Pull Request guidelines
• [x] I have added a detailed description into each commit message
• [x] I have added tests to cover this change

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.89%. Comparing base (e7feafb) to head (d3cf6f3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2800 +/- ## ========================================== + Coverage 95.88% 95.89% +0.01% ========================================== Files 223 224 +1 Lines 6082 6097 +15 ========================================== + Hits 5832 5847 +15 Misses 250 250 ```

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