[ER] Copy/paste shortcuts.
[Core] Removed Ctrl+W key sequence for shortcut in UI.
[Interfaces] Better constants.
[Interfaces] Added TabFeature::TFOverridesTabClose.
[Core] Disable close sc if it's Ctrl+W and tab is TFOverridesTabClose.
[ER] Expose TFOverridesTabClose.
[ER] Set right scrollbar.