Meta: Tidy up include path and alphabetic ordering

Author: https://github.com/SpencerCDixon
Commit: d16db6a67c
Pull-request: https://github.com/SerenityOS/serenity/pull/8266
Reviewed-by: https://github.com/Mandar12
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/linusg

Userland/Applications/About/main.cpp

@@ -7,7 +7,6 @@
 #include <LibGUI/AboutDialog.h>
 #include <LibGUI/Application.h>
 #include <LibGUI/Icon.h>
-#include <LibGfx/Bitmap.h>
 #include <stdio.h>
 #include <unistd.h>