Rename JSX files with proper .jsx extension (#23733)

app/javascript/mastodon/components/inline_account.jsx

@@ -0,0 +1,34 @@
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { connect } from 'react-redux';
+import { makeGetAccount } from 'mastodon/selectors';
+import Avatar from 'mastodon/components/avatar';
+
+const makeMapStateToProps = () => {
+  const getAccount = makeGetAccount();
+
+  const mapStateToProps = (state, { accountId }) => ({
+    account: getAccount(state, accountId),
+  });
+
+  return mapStateToProps;
+};
+
+export default @connect(makeMapStateToProps)
+class InlineAccount extends React.PureComponent {
+
+  static propTypes = {
+    account: ImmutablePropTypes.map.isRequired,
+  };
+
+  render () {
+    const { account } = this.props;
+
+    return (
+      <span className='inline-account'>
+        <Avatar size={13} account={account} /> <strong>{account.get('username')}</strong>
+      </span>
+    );
+  }
+
+}