Add initial experimental UI based on MUI

src/apps/experimental/components/ElevationScroll.tsx

@@ -0,0 +1,21 @@
+import useScrollTrigger from '@mui/material/useScrollTrigger';
+import React, { ReactElement } from 'react';
+
+/**
+ * Component that changes the elevation of a child component when scrolled.
+ */
+const ElevationScroll = ({ children, elevate = false }: { children: ReactElement, elevate?: boolean }) => {
+    const trigger = useScrollTrigger({
+        disableHysteresis: true,
+        threshold: 0
+    });
+
+    const isElevated = elevate || trigger;
+
+    return React.cloneElement(children, {
+        color: isElevated ? 'primary' : 'transparent',
+        elevation: isElevated ? 4 : 0
+    });
+};
+
+export default ElevationScroll;