🐛 Fix not setting the saved value of the custom CSS

(cherry picked from commit 0c62be8fedfd2b8015d0d1bb5b9acc5dd1ba22ac)

src/components/Settings/AdvancedSettings.tsx

@@ -17,6 +17,7 @@ export default function TitleChanger() {
       logo: config.settings.logo,
       favicon: config.settings.favicon,
       background: config.settings.background,
+      customCSS: config.settings.customCSS,
     },
   });