Add "None" as an option for display manager

[unjaks]

Just a little thing for one and a half people who dont use a display manager

[svartkanin]

The profile setting is optional, what do you mean by setting it to none?

[unjaks]

The profile setting is optional, what do you mean by setting it to none?

for example, install hyprland with the drivers but without a DM so to not bother with deleting it later

[svartkanin]

I think that'd be a very niche use case and providing that option on the menu rather complex