feat(ui): add reusable components for FIGMA-based UI system

- Implemented new reusable components including Label, Input, InputOTP, HoverCard, Popover, Pagination, NavigationMenu, Menubar, ScrollArea, Resizable, RadioGroup, and Progress under `docs/06_Frontend/FIGMA/src/app/components/ui/`.
- Enhanced structural organization to improve scalability and maintainability.
- Updated `settings.gradle.kts` to include the new module `frontend:features:nennung-feature`.

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

docs/06_Frontend/FIGMA/src/app/components/ui/use-mobile.ts

@@ -0,0 +1,21 @@
+import * as React from "react";
+
+const MOBILE_BREAKPOINT = 768;
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(
+    undefined,
+  );
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`);
+    const onChange = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    };
+    mql.addEventListener("change", onChange);
+    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return !!isMobile;
+}