each screen now has it's own file, and there is a framework for adding more

screens.h

@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef SCREENS_H /* header guard */
+#define SCREENS_H
+
+#include "globals.h"
+
+extern struct Screen screens[];
+
+#endif