feat: Add useHotkey

Co-authored-by: Morten Kolstad <morten.kolstad@bekk.no>

apps/frontend/src/hooks/useHotkey.ts

@@ -0,0 +1,18 @@
+import { useEffect } from 'react';
+
+export const useHotkey = (keyCode: string, callback: () => void) => {
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.code === keyCode && document.activeElement === document.body) {
+        event.preventDefault();
+        callback();
+      }
+    };
+
+    window.addEventListener('keydown', handleKeyDown);
+
+    return () => {
+      window.removeEventListener('keydown', handleKeyDown);
+    };
+  }, [callback, keyCode]);
+};