fix: 16 linting warnings

app/components/ButtonLink.js

@@ -0,0 +1,23 @@
+// @flow
+import * as React from "react";
+import styled from "styled-components";
+
+type Props = {
+  onClick: (ev: SyntheticEvent<>) => void,
+  children: React.Node,
+};
+
+export default function ButtonLink(props: Props) {
+  return <Button {...props} />;
+}
+
+const Button = styled.button`
+  margin: 0;
+  padding: 0;
+  border: 0;
+  color: ${(props) => props.theme.link};
+  line-height: inherit;
+  background: none;
+  text-decoration: none;
+  cursor: pointer;
+`;