Fix movie title stretching the add window

Fixes: #5096

frontend/src/AddMovie/AddNewMovie/AddNewMovieModalContent.js

@@ -186,7 +186,7 @@ class AddNewMovieModalContent extends Component {
             isSpinning={isAdding}
             onPress={this.onAddMoviePress}
           >
-            Add {title}
+            Add Movie
           </SpinnerButton>
         </ModalFooter>
       </ModalContent>

frontend/src/Components/Form/RootFolderSelectInputOption.css

@@ -15,10 +15,12 @@
 
 .value {
   display: flex;
+  max-width: 500px;
 }
 
 .movieFolder {
-  flex: 0 0 auto;
+  @add-mixin truncate;
+
   color: $disabledColor;
 }