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

src/components/Post/Embed/VideoEmbed/VideoEmbedInner/TimeIndicator.tsx

@@ -54,7 +54,7 @@ export function TimeIndicator({
       <Text
         style={[
           {color: t.palette.white, fontSize: 12, fontVariant: ['tabular-nums']},
-          a.font_bold,
+          a.font_semi_bold,
           {lineHeight: 1.25},
         ]}>
         {`${minutes}:${seconds}`}