This pull request enhances the website builder's user interface with several improvements, including a more intuitive way to expand row options, fixes for dark mode inconsistencies, and new controls for managing background images and videos. These changes improve the overall user experience and ensure consistent styling across different themes.

This pull request adds remove buttons for background images and videos, fixes several dark mode issues in the editor, and includes a few small UI improvements throughout the website builder.

task-5104004