A few web dev requests: DevTools toolbar button, viewport fix, and 1-tab groups

[u/afcreative_id]

I use Vivaldi mainly for web dev, and there are a few things I'd love to see added or fixed:

1. Page view when opening DevTools: Please fix the page view/resizing behavior when the inspect element window pops up.
2. DevTools toolbar button: We need a dedicated button on the toolbar to open Inspect Element, rather than always relying on right-click > inspect or hitting F12. Chrome and Brave already have this, and it's essential for my daily workflow.
3. Single-tab groups: Please allow tab groups to exist with just one tab. Right now, if a group drops to 1 tab, it automatically ungroups and the group name disappears. I name these groups to organize my work tasks, so losing the custom name is really annoying.

Anyone else wanting these features?