feat: add keysend messenger to custom permissions #1337

Job	Run time
integration test	6m 31s
check commits	2m 9s
frontend tests on ubuntu-latest	1m 49s
backend build on ubuntu-latest	2m 28s
frontend tests on windows-latest	10m 50s
backend build on windows-latest	17m 42s
lint	0s
backend build on macOS-latest	10m 2s
frontend tests on macOS-latest	2m 39s
RPC proto compilation check	3m 51s
unit tests	1m 46s
unit-race	32s
	1h 0m 19s

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