Further fixes and improvements related to WebAssembly #12958

Job	Run time
Code style check / Code style check	8s
IWYU / IWYU	3m 6s
MSVC / MSVC (SDL2 x86)	4m 20s
CodeChecker / CodeChecker	31m 24s
MSVC / MSVC (SDL2 x64)	4m 20s
SonarCloud Analyzer / SonarCloud Analyzer	0s
Android / Android	9m 33s
CMake / CMake (Windows SDL2)	6m 18s
CMake / CMake (Linux SDL2)	2m 13s
Make / Make (Linux x86-64 SDL2 Release)	3m 6s
CMake / CMake (macOS SDL2)	2m 4s
Make / Make (PS Vita)	9m 16s
Make / Make (Linux x86-64 SDL2 Debug)	3m 11s
CMake / CMake (macOS SDL2 App Bundle)	1m 37s
Make / Make (Linux ARM64 SDL2 Release)	4m 20s
Make / Make (Linux ARM64 SDL2 Debug)	4m 30s
Make / Make (Emscripten)	5m 20s
Make / Make (macOS SDL2)	3m 39s
Make / Make (Nintendo Switch)	3m 14s
Make / Make (macOS SDL2 App Bundle)	1m 36s
	1h 43m 15s

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