XMB: Support all possible image formats for dynamic wallpapers #2791

Job	Run time
msys2-build-test (CLANG64, windows-latest)	7m 21s
msys2-build-test (UCRT64, windows-latest)	9m 30s
msys2-build-test (CLANGARM64, windows-11-arm)	12m 23s
msys2-build-test (MINGW64, windows-latest)	9m 2s
	38m 16s

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