feat: add Playwright e2e tests #533

Job	Run time
build	4m 46s
test-dotnet	48s
test (b)	5m 30s
items-planning-playwright-test (b)	20m 7s
items-planning-playwright-test (c)	12m 7s
items-planning-playwright-test (a)	5m 39s
test (c)	8m 20s
test (a)	5m 50s
	1h 3m 7s

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