Removed prop-types global import, added to files directly

• Removed:
- prop-types global import, added to files directly

app/javascript/gabsocial/containers/media_container.js

@@ -1,4 +1,5 @@
-import React from 'react';
+import React from 'react'
+import PropTypes from 'prop-types';
 import ReactDOM from 'react-dom';
 import PropTypes from 'prop-types';
 import { IntlProvider, addLocaleData } from 'react-intl';