feat(mobile): track mobile app scaffold

mobile/app/src/hooks/use-color-scheme.ts

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+export { useColorScheme } from 'react-native';

mobile/app/src/hooks/use-color-scheme.web.ts

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+import { useEffect, useState } from 'react';
+import { useColorScheme as useRNColorScheme } from 'react-native';
+
+/**
+ * To support static rendering, this value needs to be re-calculated on the client side for web
+ */
+export function useColorScheme() {
+  const [hasHydrated, setHasHydrated] = useState(false);
+
+  useEffect(() => {
+    setHasHydrated(true);
+  }, []);
+
+  const colorScheme = useRNColorScheme();
+
+  if (hasHydrated) {
+    return colorScheme;
+  }
+
+  return 'light';
+}

mobile/app/src/hooks/use-theme.ts

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+/**
+ * Learn more about light and dark modes:
+ * https://docs.expo.dev/guides/color-schemes/
+ */
+
+import { Colors } from '@/constants/theme';
+import { useColorScheme } from '@/hooks/use-color-scheme';
+
+export function useTheme() {
+  const scheme = useColorScheme();
+  const theme = scheme === 'unspecified' ? 'light' : scheme;
+
+  return Colors[theme];
+}