Remove grey Curtain for blue alerts

• When the messages (in blue dialog box pops up) "Do you want to push master..." and "Push sub nodes..."  the grey curtain comes up, this happens only with this message. Pls remove grey curtain for all alerts.

Changes to dialog "Create live copy page"

• Add following title to the dialog: Choose page location
• Scroll bar is not needed - the columns should adjust to the width of the dialog, hence we wouldn't need scroll bar

Changes to dialog "Show linked live copy pages"

• When navigating in the list don't change highlighted focus in the background, this is very unusual behavior and not clear to the user (the grey curtain should indicate that the background content is locked aka this shouldn't happen)
• Add states when navigating in displayed list of pages same as in default browser view (hover: grey, selected: green)
• We need two buttons  Check with avongunten on this behaviour, if still needed we'll tackle in a follow-up ticket
  • Primary button (green): "Go to location"  
  • Secondary button (white): "Cancel"