Options for selecting dark theme, fix some white flashes when in dark mode (#2722)

* add dark theme selection to settings/schema

* use `useThemePrefs` where needed

* adjust theme providers to support various themes

* update storybook

* handle web themes

* better themeing for web

* dont show dark theme prefs when color mode is light

* drop the inverted text change on oled theme

* get the color mode inside of `useColorModeTheme`

* use `ThemeName` type everywhere

* typo

* use dim/dark instead of dark/oled

* prevent any fickers on web

* fix styles

* use `dim` for dark default

* more cleanup

* 🤔

* set system background color

* ts

src/view/screens/Storybook/index.tsx

@@ -3,7 +3,7 @@ import {View} from 'react-native'
 import {CenteredView, ScrollView} from '#/view/com/util/Views'
 
 import {atoms as a, useTheme, ThemeProvider} from '#/alf'
-import {useSetColorMode} from '#/state/shell'
+import {useSetThemePrefs} from '#/state/shell'
 import {Button} from '#/components/Button'
 
 import {Theming} from './Theming'
@@ -19,7 +19,7 @@ import {Icons} from './Icons'
 
 export function Storybook() {
   const t = useTheme()
-  const setColorMode = useSetColorMode()
+  const {setColorMode, setDarkTheme} = useSetThemePrefs()
 
   return (
     <ScrollView>
@@ -38,7 +38,7 @@ export function Storybook() {
               variant="solid"
               color="secondary"
               size="small"
-              label='Set theme to "system"'
+              label='Set theme to "light"'
               onPress={() => setColorMode('light')}>
               Light
             </Button>
@@ -46,8 +46,22 @@ export function Storybook() {
               variant="solid"
               color="secondary"
               size="small"
-              label='Set theme to "system"'
-              onPress={() => setColorMode('dark')}>
+              label='Set theme to "dim"'
+              onPress={() => {
+                setColorMode('dark')
+                setDarkTheme('dim')
+              }}>
+              Dim
+            </Button>
+            <Button
+              variant="solid"
+              color="secondary"
+              size="small"
+              label='Set theme to "dark"'
+              onPress={() => {
+                setColorMode('dark')
+                setDarkTheme('dark')
+              }}>
               Dark
             </Button>
           </View>