When using vertical tabs with the sidebar on the right side of the screen, with expand-on-hover, the X (close tab) button will always be where the mouse is hovered when the sidebar expands. This leads to accidentally closing tabs.
Solution: add option to flip the 'X' button so it is left-aligned in the tab instead of right-aligned.
While i'm not sure this is the perfect way to solve this, it seems at least trivially easy to implement, and should fix this issue entirely.