Hide version dropdown on non-versioned paths (#396)

* Hide version dropdown on non-versioned paths

* format

* rename func

Author: Ethan-Arrowood

src/theme/NavbarItem/DocsVersionDropdownNavbarItem.tsx

@@ -0,0 +1,14 @@
+import React from 'react';
+import DocsVersionDropdownNavbarItem from '@theme-original/NavbarItem/DocsVersionDropdownNavbarItem';
+import { useLocation } from '@docusaurus/router';
+import type { Props } from '@theme/NavbarItem/DocsVersionDropdownNavbarItem';
+
+function isNonVersionedPathname(pathname: string) {
+	return pathname.startsWith('/fabric') || pathname.startsWith('/release-notes');
+}
+
+export default function DocsVersionDropdownNavbarItemWrapper(props: Props) {
+	const location = useLocation();
+
+	return isNonVersionedPathname(location.pathname) ? null : <DocsVersionDropdownNavbarItem {...props} />;
+}