Made row based selection more consistent
Made row based selection more consistent

Made row based selection (especially when shift selecting) more consistent. (Used the behaviour of the Thunderbird list as reference).

globexdesigns/doby-grid,RobertoMalatesta/doby-grid,EvNaverniouk/doby-grid,RobertoMalatesta/doby-grid,EvNaverniouk/doby-grid,globexdesigns/doby-grid