[Windows] Fix fullscreen mode detection on window move/resize.
[Windows] Fix fullscreen mode detection on window move/resize.

vkbsb/godot,firefly2442/godot,guilhermefelipecgs/godot,pkowal1982/godot,BastiaanOlij/godot,Zylann/godot,Faless/godot,godotengine/godot,Faless/godot,BastiaanOlij/godot,akien-mga/godot,ZuBsPaCe/godot,vkbsb/godot,firefly2442/godot,pkowal1982/godot,josempans/godot,vkbsb/godot,BastiaanOlij/godot,ZuBsPaCe/godot,akien-mga/godot,akien-mga/godot,guilhermefelipecgs/godot,josempans/godot,Zylann/godot,BastiaanOlij/godot,godotengine/godot,pkowal1982/godot,ZuBsPaCe/godot,Shockblast/godot,pkowal1982/godot,josempans/godot,sanikoyes/godot,Zylann/godot,godotengine/godot,ZuBsPaCe/godot,josempans/godot,guilhermefelipecgs/godot,sanikoyes/godot,Shockblast/godot,vkbsb/godot,Faless/godot,Shockblast/godot,sanikoyes/godot,guilhermefelipecgs/godot,sanikoyes/godot,Valentactive/godot,BastiaanOlij/godot,akien-mga/godot,sanikoyes/godot,ZuBsPaCe/godot,firefly2442/godot,vkbsb/godot,Faless/godot,pkowal1982/godot,Shockblast/godot,Zylann/godot,BastiaanOlij/godot,Zylann/godot,vkbsb/godot,firefly2442/godot,sanikoyes/godot,Shockblast/godot,Shockblast/godot,Zylann/godot,Valentactive/godot,Valentactive/godot,Zylann/godot,godotengine/godot,BastiaanOlij/godot,josempans/godot,Valentactive/godot,josempans/godot,firefly2442/godot,guilhermefelipecgs/godot,guilhermefelipecgs/godot,Valentactive/godot,BastiaanOlij/godot,Faless/godot,josempans/godot,pkowal1982/godot,guilhermefelipecgs/godot,godotengine/godot,Shockblast/godot,akien-mga/godot,pkowal1982/godot,Faless/godot,pkowal1982/godot,Faless/godot,akien-mga/godot,Valentactive/godot,Zylann/godot,akien-mga/godot,Shockblast/godot,godotengine/godot,firefly2442/godot,firefly2442/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,godotengine/godot,Valentactive/godot,vkbsb/godot,sanikoyes/godot,ZuBsPaCe/godot,Valentactive/godot,firefly2442/godot,sanikoyes/godot,Faless/godot,ZuBsPaCe/godot,vkbsb/godot,akien-mga/godot,josempans/godot,godotengine/godot