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/alf/util/useColorModeTheme.ts

@@ -1,10 +1,10 @@
 import React from 'react'
 import {type ColorSchemeName, useColorScheme} from 'react-native'
+import {type ThemeName} from '@bsky.app/alf'
 
 import {isWeb} from '#/platform/detection'
 import {useThemePrefs} from '#/state/shell'
 import {dark, dim, light} from '#/alf/themes'
-import {type ThemeName} from '#/alf/types'
 
 export function useColorModeTheme(): ThemeName {
   const theme = useThemeName()