update theme dark, light mode

app/(tabs)/index.tsx

@@ -16,6 +16,7 @@ import {
 } from "@/constants";
 import { useColorScheme } from "@/hooks/use-color-scheme.web";
 import { usePlatform } from "@/hooks/use-platform";
+import { useThemeContext } from "@/hooks/use-theme-context";
 import {
   getAlarmEventBus,
   getBanzonesEventBus,
@@ -53,7 +54,7 @@ export default function HomeScreen() {
     PolygonWithLabelProps[]
   >([]);
   const platform = usePlatform();
-  const theme = useColorScheme();
+  const theme = useThemeContext().colorScheme;
   const scale = useRef(new Animated.Value(0)).current;
   const opacity = useRef(new Animated.Value(1)).current;