New: Show ExtraFiles in UI

frontend/src/MovieFile/Editor/MovieFileEditorTable.css

@@ -0,0 +1,10 @@
+.container {
+  margin-top: 20px;
+  border: 1px solid $borderColor;
+  border-radius: 4px;
+  background-color: $white;
+
+  &:last-of-type {
+    margin-bottom: 0;
+  }
+}

frontend/src/MovieFile/Editor/MovieFileEditorTable.js

@@ -1,6 +1,7 @@
 import PropTypes from 'prop-types';
 import React from 'react';
 import MovieFileEditorTableContentConnector from './MovieFileEditorTableContentConnector';
+import styles from './MovieFileEditorTable.css';
 
 function MovieFileEditorTable(props) {
   const {
@@ -8,9 +9,11 @@ function MovieFileEditorTable(props) {
   } = props;
 
   return (
-    <MovieFileEditorTableContentConnector
-      movieId={movieId}
-    />
+    <div className={styles.container}>
+      <MovieFileEditorTableContentConnector
+        movieId={movieId}
+      />
+    </div>
   );
 }