fix: 4 different things (website field limits, login label, and styling x2)

website character limit, dialog box rounded corners, drafts list bg color, and PDS detection label claiming email support

src/components/Prompt.tsx

···
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
 
+import {useEnableSquareButtons} from '#/state/preferences/enable-square-buttons'
 import {atoms as a, useTheme, type ViewStyleProp, web} from '#/alf'
 import {Button, type ButtonColor, ButtonText} from '#/components/Button'
 import * as Dialog from '#/components/Dialog'
···
     [titleId, descriptionId],
   )
 
+  const enableSquareButtons = useEnableSquareButtons()
+
   return (
     <Dialog.Outer
       control={control}
···
         <Dialog.ScrollableInner
           accessibilityLabelledBy={titleId}
           accessibilityDescribedBy={descriptionId}
-          style={web([{maxWidth: 320, borderRadius: 36}])}>
+          style={web([{maxWidth: 320, borderRadius: enableSquareButtons ? 18 : 36}])}>
           {children}
         </Dialog.ScrollableInner>
       </Context.Provider>

src/screens/Login/LoginForm.tsx

···
             <TextField.Input
               testID="loginUsernameInput"
               inputRef={identifierRef}
-              label={_(msg`Username or email address`)}
+              label={
+                serviceUrl === undefined ? _(msg`Username (full handle)`) :
+                _(msg`Username or email address`)
+              }
               autoCapitalize="none"
               autoFocus={!IS_IOS}
               autoCorrect={false}

src/screens/Profile/Header/EditProfileDialog.tsx

···
 
 const DISPLAY_NAME_MAX_GRAPHEMES = 64
 const PRONOUNS_MAX_GRAPHEMES = 20
-const WEBSITE_MAX_GRAPHEMES = 28
+const WEBSITE_MAX_GRAPHEMES = 2048
 const DESCRIPTION_MAX_GRAPHEMES = 256
 
 export function EditProfileDialog({

src/view/com/composer/drafts/DraftsListDialog.tsx

···
         style={[
           a.px_0,
           web({minHeight: 500}),
-          {
-            backgroundColor: select(t.name, {
-              light: t.palette.contrast_50,
-              dark: t.palette.contrast_0,
-              dim: '#000000',
-            }),
-          },
         ]}
         webInnerContentContainerStyle={[a.py_0]}
         contentContainerStyle={[a.pb_xl]}