* feat: add macos simple fullscreen
* move impl to WindowExt
* feedback: remove warning, unused file and rename param
* feedback: combine fullscreen examples into one example
* fix: ensure decorations and maximize do not toggle while in fullscreen
* fix: prevent warning on non-macos platforms
* feedback: make changelog more explicit
* fix: prevent unconditional construction of NSRect
* fix: don't try to set_simple_fullscreen if already using native fullscreen
* fix: ensure set_simple_fullscreen plays nicely with set_fullscreen
* fix: do not enter native fullscreen if simple fullscreen is active
