* WIP Use browser font size instead of hardcoded 16px
* Add font migration to v3
* Remove custom font size input
* Use a dropdown instead of a slider
* Add margin to the font size dropdown
* Fix `UpdateFontSizeDelta` action typo
* Fix `fontScale`in `Call.ts`
* Rename `baseFontSizeV3` to `fontSizeDelta`
* Update playwright test
* Add `default` next to the browser font size
* Remove remaining `TODO`
* Remove falsy `private`
* Improve doc
* Update snapshots after develop merge
* Remove commented import
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