Fixed: Ensure translations are fetched before loading app

(cherry picked from commit ad2721dc55f3233e4c299babe5744418bc530418)

Closes #8814
Closes #8817

frontend/src/Components/Page/ErrorPage.js

@@ -7,6 +7,7 @@ function ErrorPage(props) {
   const {
     version,
     isLocalStorageSupported,
+    hasTranslationsError,
     moviesError,
     customFiltersError,
     tagsError,
@@ -20,6 +21,8 @@ function ErrorPage(props) {
 
   if (!isLocalStorageSupported) {
     errorMessage = 'Local Storage is not supported or disabled. A plugin or private browsing may have disabled it.';
+  } else if (hasTranslationsError) {
+    errorMessage = 'Failed to load translations from API';
   } else if (moviesError) {
     errorMessage = getErrorMessage(moviesError, 'Failed to load movie from API');
   } else if (customFiltersError) {
@@ -52,6 +55,7 @@ function ErrorPage(props) {
 ErrorPage.propTypes = {
   version: PropTypes.string.isRequired,
   isLocalStorageSupported: PropTypes.bool.isRequired,
+  hasTranslationsError: PropTypes.bool.isRequired,
   moviesError: PropTypes.object,
   customFiltersError: PropTypes.object,
   tagsError: PropTypes.object,

frontend/src/Components/Page/PageConnector.js

@@ -232,6 +232,7 @@ class PageConnector extends Component {
 
   render() {
     const {
+      hasTranslationsError,
       isPopulated,
       hasError,
       dispatchFetchMovies,
@@ -246,11 +247,12 @@ class PageConnector extends Component {
       ...otherProps
     } = this.props;
 
-    if (hasError || !this.state.isLocalStorageSupported) {
+    if (hasTranslationsError || hasError || !this.state.isLocalStorageSupported) {
       return (
         <ErrorPage
           {...this.state}
           {...otherProps}
+          hasTranslationsError={hasTranslationsError}
         />
       );
     }
@@ -271,6 +273,7 @@ class PageConnector extends Component {
 }
 
 PageConnector.propTypes = {
+  hasTranslationsError: PropTypes.bool.isRequired,
   isPopulated: PropTypes.bool.isRequired,
   hasError: PropTypes.bool.isRequired,
   isSidebarVisible: PropTypes.bool.isRequired,