Wait for window to be created before adjusting the selected index

[david-trumid]

Right now when you popout a border node that is a different size then the default border or the tab size of the tab that will be selected after the adjusted tab index is selected, then the newly selected tabs bounding size will be used as the popout rect dimensions.

Suggestion is to move the call to adjustSelectedTabAfterFloat to after the window is created in onSetWindow, this has a better UX and will use the proper window dimensions.

Also for context menu, suggest you select the tab if it is not the selected one otherwise it will use the current tabs dimensions