test: add playwright e2e suite for files-inspector and streaming-chat… #45

Job	Run time
e2e	1m 4s
unit-test / lint	53s
unit-test / test (windows-latest, 26)	1m 41s
unit-test / test (windows-latest, 22)	1m 58s
unit-test / test (ubuntu-latest, 22)	48s
unit-test / test (windows-latest, 24)	1m 51s
unit-test / test (ubuntu-latest, 26)	53s
unit-test / test (ubuntu-latest, 24)	47s
	9m 55s

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