tests

Add screenshot tests #322

Job	Run time
Check Manifest	16s
Check Manifest	11s
linting	13s
linting	10s
ubuntu-latest py3.9	1m 47s
ubuntu-latest py3.9	1m 39s
ubuntu-latest py3.10	1m 35s
ubuntu-latest py3.10	1m 47s
ubuntu-latest py3.11	1m 57s
ubuntu-latest py3.11	1m 41s
macos-13 py3.11	2m 47s
macos-13 py3.11	2m 47s
macos-latest py3.11	6m 26s
macos-latest py3.11	6m 22s
windows-latest py3.11	2m 28s
windows-latest py3.11	2m 23s
Build source distribution	0s
Build source distribution	0s
Publish build distributions	0s
Publish build distributions	0s
	34m 29s

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