864ea452b4
The side panel close (X) button was hidden on all mobile views, while the back button only renders when there is navigation history. When the side panel is opened at the root (e.g. viewing a record directly with a single-item navigation stack), neither button was shown, leaving no way to dismiss the panel on mobile. Keep the close button available on mobile whenever there is no back button to fall back on, so the panel is always dismissable. ## Before https://github.com/user-attachments/assets/61891d25-26b8-4ba4-8b05-73fd44f92d89 ## After https://github.com/user-attachments/assets/41342722-bcaf-420b-83bb-3cafaec49516