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/Profile/Header/ProfileHeaderLabeler.tsx

@@ -225,7 +225,7 @@ let ProfileHeaderLabeler = ({
                             ? t.palette.contrast_700
                             : t.palette.white,
                         },
-                        a.font_bold,
+                        a.font_semi_bold,
                         a.text_center,
                         a.leading_tight,
                       ]}>
@@ -297,7 +297,7 @@ let ProfileHeaderLabeler = ({
                     {({hovered, focused, pressed}) => (
                       <Text
                         style={[
-                          a.font_bold,
+                          a.font_semi_bold,
                           a.text_sm,
                           t.atoms.text_contrast_medium,
                           (hovered || focused || pressed) &&