feat: add Playwright e2e tests #541

Job	Run time
build	4m 53s
test-dotnet	49s
items-planning-playwright-test (a)	7m 27s
items-planning-playwright-test (c)	25m 2s
test (a)	7m 50s
test (b)	5m 27s
test (c)	7m 54s
items-planning-playwright-test (b)	8m 46s
	1h 8m 8s

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