Build Installer

Fix structure viewer rendering on macOS and add basic GUI tests based on screenshot comparison #204

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Run time

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Job	Run time
build-installer (Ubuntu-20.04)	1m 58s
build-installer (Ubuntu-22.04)	2m 1s
build-installer (macOS-13)	2m 39s
build-installer (Windows-2022)	3m 25s
test-installer	0s
	10m 3s