Lint

Delete theme.ts

Author: RoyEJohnson

src/app/components/DynamicContentStyles.spec.tsx

@@ -162,7 +162,7 @@ describe('DynamicContentStyles', () => {
   it('removes injected style element when styles change', async() => {
     store.dispatch(setBookStylesUrl('../resources/styles/test-styles.css'));
 
-    const component = renderer.create(<TestContainer store={store}>
+    renderer.create(<TestContainer store={store}>
       <Component book={book} />
     </TestContainer>);
 

src/app/components/DynamicContentStyles.tsx

@@ -89,7 +89,7 @@ const DynamicContentStyles = React.forwardRef<HTMLElement, DynamicContentStylesP
 
     // Cleanup function to remove the style element when component unmounts or styles change
     return () => {
-      document.head.removeChild(styleElement);
+      document?.head.removeChild(styleElement); // no document returns early
     };
   }, [styles]);