feat: add Playwright e2e tests #531

Job	Run time
build	4m 36s
test-dotnet	48s
test (a)	5m 52s
items-planning-playwright-test (c)	11m 29s
test (b)	5m 14s
items-planning-playwright-test (b)	19m 25s
test (c)	7m 52s
items-planning-playwright-test (a)	5m 27s
	1h 0m 43s

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