Update guest v2 branding and theming

resources/js/guest-v2/components/PhotoFrameTile.tsx

@@ -1,6 +1,6 @@
 import React from 'react';
 import { YStack } from '@tamagui/stacks';
-import { useAppearance } from '@/hooks/use-appearance';
+import { useGuestThemeVariant } from '../lib/guestTheme';
 
 type PhotoFrameTileProps = {
   height: number;
@@ -17,8 +17,7 @@ export default function PhotoFrameTile({
   shimmer = false,
   shimmerDelayMs = 0,
 }: PhotoFrameTileProps) {
-  const { resolved } = useAppearance();
-  const isDark = resolved === 'dark';
+  const { isDark } = useGuestThemeVariant();
 
   return (
     <YStack