refactor: Developers component

Using React hooks

src/components/AvatarTooltip/AvatarTooltip.tsx

@@ -0,0 +1,32 @@
+import React, { FC } from 'react';
+
+import Avatar from '@material-ui/core/Avatar';
+import Tooltip from '@material-ui/core/Tooltip';
+import { isEmail } from '../../utils/url';
+
+export interface AvatarDeveloper {
+  name: string;
+  packageName: string;
+  version: string;
+  avatar: string;
+  email: string;
+}
+
+const AvatarTooltip: FC<AvatarDeveloper> = ({ name, packageName, version, avatar, email }) => {
+  const avatarComponent = <Avatar aria-label={name} src={avatar} />;
+  function renderLinkForMail(email, avatarComponent, packageName, version): JSX.Element {
+    if (!email || isEmail(email) === false) {
+      return avatarComponent;
+    }
+
+    return (
+      <a href={`mailto:${email}?subject=${packageName}@${version}`} target={'_top'}>
+        {avatarComponent}
+      </a>
+    );
+  }
+
+  return <Tooltip title={name}>{renderLinkForMail(email, avatarComponent, packageName, version)}</Tooltip>;
+};
+
+export { AvatarTooltip };

src/components/AvatarTooltip/index.ts

@@ -0,0 +1,4 @@
+import { AvatarTooltip } from './AvatarTooltip';
+
+export { AvatarTooltip };
+export default AvatarTooltip;