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/Messages/components/ChatListItem.tsx

@@ -397,7 +397,7 @@ function ChatListItemReady({
                       style={[
                         a.text_md,
                         t.atoms.text,
-                        a.font_bold,
+                        a.font_semi_bold,
                         {lineHeight: 21},
                         isDimStyle && t.atoms.text_contrast_medium,
                       ]}>
@@ -461,7 +461,7 @@ function ChatListItemReady({
                   style={[
                     a.text_sm,
                     a.leading_snug,
-                    hasUnread ? a.font_bold : t.atoms.text_contrast_high,
+                    hasUnread ? a.font_semi_bold : t.atoms.text_contrast_high,
                     isDimStyle && t.atoms.text_contrast_medium,
                   ]}>
                   {lastMessage}