To switch your site's language to Arabic and enable a right-to-left (RTL) layout for all the content, follow these steps:
1. Go to your editor's Settings panel.
2. Select "Basic Info".
3. Look for the "Site Language" section.
4. Choose Arabic (عربي) from the available languages.
5. Save the change.
6. When prompted with a pop-up message asking if you want to set the site's language to Arabic, click "Yes" to confirm the switch to RTL layout.
7. Publish your site to make the changes live.