Hide agent store from navbar #5456

Job	Run time
build-and-check	2m 29s
test-packages/internal	54s
test-cli	1m 14s
test-integration-common	42s
test-packages/agent-runtime	1m 0s
test-packages/billing	46s
test-integration-packages/agent-runtime	39s
test-common	45s
test-integration-.agents	41s
test-web	43s
test-integration-cli	40s
test-.agents	38s
test-sdk	38s
test-integration-web	45s
test-integration-packages/billing	39s
test-integration-packages/internal	40s
test-integration-sdk	40s
	14m 33s

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