Migrate to `@bsky.app/alf` package (#9030)
* Add storybook shortcut in dev
* Migrate to alg pkg
* Migrate font_bold to new font_semi_bold
* Migrate font_heavy to font_bold
* Fix old theme refs
* Remove leading util
* Bump
* Revert "Add storybook shortcut in dev"
This reverts commit 7a86195c77fb5d449c7782e64ebabb6addfab919.
* Remove alf script
* Adjust font scale
* Bump
* Bump pkg
* Migrate values from conflicts
* Create default themes outside react
* Use built-in alf utils
* Migrate old font styles
* Remove unused tokens
* Move theme creation to more appropriate file
* Update button colors
* Adjust TextField colors, line heights
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