add notification component (#260) #153

Job	Run time
lint_test / build	2m 54s
docker_build (devnet)	2m 55s
docker_build (phase-2-devnet)	2m 48s
docker_build (staging)	2m 42s
docker_build (testnet)	2m 49s
docker_build (mainnet-private)	2m 50s
docker_build (mainnet)	2m 47s
dockerhub_publish (devnet)	19s
ecr_publish (devnet)	35s
dockerhub_publish (phase-2-devnet)	27s
ecr_publish (phase-2-devnet)	35s
ecr_publish (staging)	34s
dockerhub_publish (staging)	26s
dockerhub_publish (testnet)	17s
ecr_publish (testnet)	37s
dockerhub_publish (mainnet-private)	18s
ecr_publish (mainnet-private)	34s
dockerhub_publish (mainnet)	17s
ecr_publish (mainnet)	35s
	25m 19s

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