New serenity_app() targets can be defined which allows application
icons to be emedded directly into the executable. The embedded
icons will then be used when creating an icon for that file in
LibGUI.
Since the vast majority of message boxes should be modal, require
the parent window to be passed in, which can be nullptr for the
rare case that they don't. By it being the first argument, the
default arguments also don't need to be explicitly stated in most
cases, and it encourages passing in a parent window handle.
Fix up several message boxes that should have been modal.
Now that KeyboardSettings is no longer setuid-root, we have to call out
to a helper program to actually set the keymap.
This is a very nice improvement to system security. :^)
This patch removes the setuid-root flag from the KeyboardSettings GUI
application and adds back the old "keymap" program.
It doesn't feel very safe and sound to have a GUI program runnable
as setuid-root, so in the next patch I'll be making KeyboardSettings
call out to the "keymap" program to do its bidding.
