Load datasets + Datasets grid + Datasets search (#889)

* [examples/openspending][m] - added loader + fetching from datapackage

- Also added an indexing example

* [examples/openspending,home][xl]: removes datasets table, implement dataset cards grid, implement country facet

* [examples/openspending,home][m]: add min date and max date facets

---------

Co-authored-by: Luccas Mateus de Medeiros Gomes <luccasmmg@gmail.com>

examples/openspending/components/Button.tsx

@@ -1,15 +1,15 @@
-import Link from 'next/link'
-import clsx from 'clsx'
+import Link from 'next/link';
+import clsx from 'clsx';
 
-export function Button({ href, className = "", ...props }) {
+export function Button({ href, className = '', ...props }) {
   className = clsx(
     'inline-flex justify-center rounded-2xl bg-emerald-600 p-4 text-base font-semibold text-white hover:bg-emerald-500 focus:outline-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-emerald-500 active:text-white/70',
     className
-  )
+  );
 
   return href ? (
-    <Link href={href} className={className} {...props} />
+    <Link scroll={false} href={href} className={className} {...props} />
   ) : (
     <button className={className} {...props} />
-  )
+  );
 }