feat(mobile): track mobile app scaffold

mobile/app/src/components/themed-view.tsx

@@ -0,0 +1,16 @@
+import { View, type ViewProps } from 'react-native';
+
+import { ThemeColor } from '@/constants/theme';
+import { useTheme } from '@/hooks/use-theme';
+
+export type ThemedViewProps = ViewProps & {
+  lightColor?: string;
+  darkColor?: string;
+  type?: ThemeColor;
+};
+
+export function ThemedView({ style, lightColor, darkColor, type, ...otherProps }: ThemedViewProps) {
+  const theme = useTheme();
+
+  return <View style={[{ backgroundColor: theme[type ?? 'background'] }, style]} {...otherProps} />;
+}