Applications: Use new global variables at /sys/kernel/ directory

Author: https://github.com/supercomputer7
Commit: 5dfb2b18f3
Pull-request: https://github.com/SerenityOS/serenity/pull/15593
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/kleinesfilmroellchen ✅

Userland/Applications/PixelPaint/main.cpp

@@ -31,7 +31,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_positional_argument(image_file, "Image file to open", "path", Core::ArgsParser::Required::No);
     args_parser.parse(arguments);
 
-    TRY(Core::System::unveil("/proc/all", "r"));
+    TRY(Core::System::unveil("/sys/kernel/processes", "r"));
     TRY(Core::System::unveil("/res", "r"));
     TRY(Core::System::unveil("/tmp/session/%sid/portal/clipboard", "rw"));
     TRY(Core::System::unveil("/tmp/session/%sid/portal/filesystemaccess", "rw"));