Add ability to move a Tab Group to the Start or End of the list of tabs

[Tactilis]

I can drag a tab group up or down my vertical tabs to reposition it - but with around 200 tabs in the side bar, it's really tedious to move a group all the way to the Start or End because you have to drag it to the top or bottom of the visible part of the list and let the list scroll underneath.

Please add ability to right click a Tab Group and move it directly to the Start or End in similar way that you can move a tab to the Start or End.

[kelimuttu]

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