feat(messages): split MessagesView, move search/actions to nav, reuse @antfu/design #493

Job	Run time
unit-test / test (ubuntu-latest, 26)	2m 22s
e2e	2m 10s
unit-test / test (windows-latest, 22)	3m 5s
unit-test / test (windows-latest, 26)	4m 35s
unit-test / test (ubuntu-latest, 24)	1m 52s
unit-test / test (ubuntu-latest, 22)	2m 17s
unit-test / test (windows-latest, 24)	4m 54s
unit-test / lint	1m 51s
	23m 6s

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