Refactor api requests and components out of pages

components/BeerIndex/Pagination.tsx

@@ -0,0 +1,37 @@
+import { useRouter } from 'next/router';
+import { FC } from 'react';
+
+interface PaginationProps {
+  pageNum: number;
+  pageCount: number;
+}
+
+const Pagination: FC<PaginationProps> = ({ pageCount, pageNum }) => {
+  const router = useRouter();
+
+  return (
+    <div className="btn-group">
+      <button
+        className="btn"
+        disabled={pageNum <= 1}
+        onClick={async () =>
+          router.push({ pathname: '/beers', query: { page_num: pageNum - 1 } })
+        }
+      >
+        «
+      </button>
+      <button className="btn">Page {pageNum}</button>
+      <button
+        className="btn"
+        disabled={pageNum >= pageCount}
+        onClick={async () =>
+          router.push({ pathname: '/beers', query: { page_num: pageNum + 1 } })
+        }
+      >
+        »
+      </button>
+    </div>
+  );
+};
+
+export default Pagination;