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/Error.tsx

@@ -40,7 +40,7 @@ export function Error({
       ]}
       sideBorders={sideBorders}>
       <View style={[a.w_full, a.align_center, a.gap_lg]}>
-        <Text style={[a.font_bold, a.text_3xl]}>{title}</Text>
+        <Text style={[a.font_semi_bold, a.text_3xl]}>{title}</Text>
         <Text
           style={[
             a.text_md,