Add Redux and reducers.

Load i18n files and add dayjs.

src/lib/isTouchscreenDevice.ts

@@ -0,0 +1,7 @@
+import { isDesktop, isMobile, isTablet } from "react-device-detect";
+export const isTouchscreenDevice =
+    isDesktop && !isTablet
+        ? false
+        : (typeof window !== "undefined"
+              ? navigator.maxTouchPoints > 0
+              : false) || isMobile;