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/view/com/composer/Composer.tsx

@@ -1770,7 +1770,7 @@ function ErrorBanner({
             style={[
               {paddingLeft: 28},
               a.text_xs,
-              a.font_bold,
+              a.font_semi_bold,
               a.leading_snug,
               t.atoms.text_contrast_low,
             ]}>
@@ -1863,7 +1863,7 @@ function VideoUploadToolbar({state}: {state: VideoState}) {
           progress={wheelProgress}
         />
       </Animated.View>
-      <NewText style={[a.font_bold, a.ml_sm]}>{text}</NewText>
+      <NewText style={[a.font_semi_bold, a.ml_sm]}>{text}</NewText>
     </ToolbarWrapper>
   )
 }