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/screens/Settings/Settings.tsx

@@ -343,7 +343,7 @@ function ProfilePreview({
             a.pt_sm,
             t.atoms.text,
             gtMobile ? a.text_4xl : a.text_3xl,
-            a.font_heavy,
+            a.font_bold,
           ]}>
           {displayName}
         </Text>
@@ -513,7 +513,9 @@ function DevOptions() {
 
       <SettingsList.Divider />
       <View style={[a.p_xl, a.gap_md]}>
-        <Text style={[a.text_lg, a.font_bold]}>PolicyUpdate202508 Debug</Text>
+        <Text style={[a.text_lg, a.font_semi_bold]}>
+          PolicyUpdate202508 Debug
+        </Text>
 
         <View style={[a.flex_row, a.align_center, a.justify_between, a.gap_md]}>
           <Button