Add flags to DesktopExperienceFlags

I forgot to add the following flags to DesktopExperienceFlags.
I'll update the flag usages in follow-up CLs.

[Needed for dev option launch]
- enable_presentation_for_connected_displays
- enable_size_compat_mode_improvements_for_connected_displays

[Not needed for dev option launch (app compat)]
- enable_restart_menu_for_connected_displays
- enable_display_compat_mode

Bug: 411341556
Flag: EXEMPT just adding a flag to DesktopExperienceFlags
Test: m
Change-Id: I06acd2366c2ab3024fc5f2c517ee2943e22214e6