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/ContextMenu/index.tsx

@@ -796,7 +796,7 @@ export function ItemText({children, style}: ItemTextProps) {
       style={[
         a.flex_1,
         a.text_md,
-        a.font_bold,
+        a.font_semi_bold,
         t.atoms.text_contrast_high,
         {paddingTop: 3},
         style,
@@ -855,7 +855,11 @@ export function LabelText({children}: {children: React.ReactNode}) {
   const t = useTheme()
   return (
     <Text
-      style={[a.font_bold, t.atoms.text_contrast_medium, {marginBottom: -8}]}>
+      style={[
+        a.font_semi_bold,
+        t.atoms.text_contrast_medium,
+        {marginBottom: -8},
+      ]}>
       {children}
     </Text>
   )