feat: screenshot app improvement, WIndow Server supports full-screen overlay, Disks app UI improvements

programs/GNUmakefile

@@ -267,8 +267,8 @@ rpgdemo: libc
 doom: libc
 	$(MAKE) -C src/doom
 
-# Build screenshot tool (depends on libc and libjpegwrite).
-screenshot: libc libjpegwrite
+# Build screenshot tool (depends on libc, libjpegwrite, libloader, and libdialogs).
+screenshot: libc libjpegwrite libloader dialogs
 	$(MAKE) -C src/screenshot
 
 # Build TCC (Tiny C Compiler) via its own Makefile (depends on libc).