add app readme

lots of styling improvements
fix dark/bright mode

app/src/components/ScrollArea.tsx

@@ -0,0 +1,17 @@
+import * as ScrollArea from "@radix-ui/react-scroll-area";
+import { FC } from "react";
+
+const ScrollBar: FC<{ orientation?: "horizontal" | "vertical" }> = ({
+  orientation = "vertical",
+}) => {
+  return (
+    <ScrollArea.Scrollbar
+      className="flex select-none touch-none p-0.5 bg-neutral-accent transition-colors duration-[160ms] ease-out data-[orientation=vertical]:w-2.5 data-[orientation=horizontal]:flex-col data-[orientation=horizontal]:h-2.5"
+      orientation={orientation}
+    >
+      <ScrollArea.Thumb className="flex-1 bg-main rounded-[10px] relative before:content-[''] before:absolute before:top-1/2 before:left-1/2 before:-translate-x-1/2 before:-translate-y-1/2 before:w-full before:h-full before:min-w-[44px] before:min-h-[44px]" />
+    </ScrollArea.Scrollbar>
+  );
+};
+
+export default ScrollBar;