feat: Add header styles inclusion

src/App.scss

@@ -10,6 +10,7 @@ $fa-font-path: "~font-awesome/fonts";
 $input-focus-box-shadow: $input-box-shadow; // hack to get upgrade to paragon 4.0.0 to work
 
 @import "~@edx/frontend-component-footer/dist/_footer";
+@import "~@edx/frontend-component-header/dist/index";
 
 #root {
   display: flex;

src/containers/ReviewModal/ReviewErrors/LockErrors.jsx

@@ -16,7 +16,7 @@ import ReviewError from './ReviewError';
  */
 export class LockErrors extends React.Component {
   get errorProp() {
-    if (this.props.errorStatus === ErrorStatuses.forbidden) {
+    if (this.props.errorStatus === ErrorStatuses.conflict) {
       return {
         heading: messages.errorLockContestedHeading,
         message: messages.errorLockContested,

src/containers/ReviewModal/ReviewErrors/LockErrors.test.jsx

@@ -41,7 +41,7 @@ describe('LockErrors component', () => {
         expect(el.snapshot).toMatchSnapshot();
       });
       test('snapshot: error with conflicted lock', () => {
-        el = shallow(<LockErrors {...props} errorStatus={ErrorStatuses.forbidden} />);
+        el = shallow(<LockErrors {...props} errorStatus={ErrorStatuses.conflict} />);
         expect(el.snapshot).toMatchSnapshot();
       });
     });

src/containers/ReviewModal/ReviewModal.scss

@@ -4,12 +4,8 @@
   background-color: $gray-300 !important;
   padding: inherit;
 
-  & > div.pgn__modal-body-content {
+  & > div.pgn__modal-body-content .row {
     height: 100%;
-
-    .row {
-      height: 100%;
-    }
   }
 
   .content-block {
@@ -40,4 +36,4 @@
       width: 100%;
     }
   }
-}
+}