(actually) fix broken MS2022 behavior

a recent Visual Studio update introduced an error unless there is a
CMakePresets.json file present, completely blowing up the previous
setup.

after this commit, you should either delete the CMakeUserPresets.json
file from your root or add it to your system - NOT repo! - excludesFile:
https://stackoverflow.com/questions/7335420/global-git-ignore

.gitignore

@@ -6,6 +6,6 @@
 /.vs/
 /build/
 /out/
+/CMakePresets.json
 /CMakeSettings.json
-/CMakeUserPresets.json
 /lib/

cmake/CopyUserPresetTemplate.cmake

@@ -5,7 +5,7 @@ function(CopyUserPresetTemplate)
 		NOT EXISTS "${CMAKE_SOURCE_DIR}/CMakePresets.json" AND
 		NOT EXISTS "${CMAKE_SOURCE_DIR}/CMakeUserPresets.json"
 	)
-		file(COPY "${CMAKE_SOURCE_DIR}/cmake/presets/CMakeUserPresets.json" DESTINATION "${CMAKE_SOURCE_DIR}")
-		message(FATAL_ERROR "No existing preset was found, copied a preset template to ${CMAKE_SOURCE_DIR}/CMakeUserPresets.json.")
+		file(COPY "${CMAKE_SOURCE_DIR}/cmake/presets/CMakePresets.json" DESTINATION "${CMAKE_SOURCE_DIR}")
+		message(FATAL_ERROR "No existing preset was found, copied a preset template to ${CMAKE_SOURCE_DIR}/CMakePresets.json.")
 	endif()
 endfunction()