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/SearchError.tsx

@@ -34,7 +34,13 @@ export function SearchError({
             {maxWidth: gtMobile ? 394 : 294},
             gtMobile ? a.gap_md : a.gap_sm,
           ]}>
-          <Text style={[a.font_bold, a.text_lg, a.text_center, a.leading_snug]}>
+          <Text
+            style={[
+              a.font_semi_bold,
+              a.text_lg,
+              a.text_center,
+              a.leading_snug,
+            ]}>
             {title}
           </Text>
           {children}