Adds support for entering math inside number widgets in vue mode
Migrates components to simple html elements (div and button) by
borrowing styling from the (reverted) reka-ui migration in #6985. The
existing (evil) litegraph eval code is extracted as a utility function
and reused.
This PR means we're entirely writing our own NumberField.
Also adds support for scrubbing widgets like in litegraph
### Known Issue
- Scrubbing causes text to be highlighted, ~~starting a scrub from
highlighted text will instead drag the text~~.
- It seems this can only be prevented with `pointerdown.prevent`, but
this requires a manual `input.focus()` which does not place the cursor
at location of mouse click.
(Obligatory: _It won't do you a bit of good to review math_)
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7759-Implement-vue-math-2d46d73d365081b9acd4d6422669016e)
by [Unito](https://www.unito.io)
---------
Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: DrJKL <DrJKL0424@gmail.com>
## Summary
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## Changes
- **What**: <!-- Core functionality added/modified -->
- **Breaking**: <!-- Any breaking changes (if none, remove this line)
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- **Dependencies**: <!-- New dependencies (if none, remove this line)
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## Review Focus
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<!-- If this PR fixes an issue, uncomment and update the line below -->
<!-- Fixes #ISSUE_NUMBER -->
## Screenshots (if applicable)
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┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7395-chore-fix-playwright-expectations-2c66d73d3650819d8913d80be55d7908)
by [Unito](https://www.unito.io)
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Co-authored-by: github-actions <github-actions@github.com>
