Update RGFW and replace long switch in rcore_desktop_rgfw.c with a lo…

…okup table (#4108)

* Fix Makefile issues (RGFW) (linux) (macOS)

* Do not use nanosleep on windows at all (PLATFORM_DESKTOP_RGFW)

* remove #define RGFWDEF and make the #undefs only happen for their OS

* Update RGFW.h

* fix to match the RGFW updates

* remove line that shows the cursor for no reason

* Update RGFW, replace long switch with an array, update rgfw platform for RGFW

* update RGFW (fix reported glitch with drag and drop files) (linux)

* remove u16