docs(structure + onprem): revamped nav + new onprem install (#3953) #6348

Job	Run time
CLI unit tests	1m 37s
Agent unit tests	2m 24s
API Server unit tests	3m 32s
WebUI unit tests	2m 6s
Build docker image	6m 36s
config-e2e	1s
CLI smoke tests (local)	41s
CLI e2e tests (8, 0)	2m 29s
CLI smoke tests (docker)	40s
Test examples (collector)	47s
CLI e2e tests (8, 1)	2m 31s
WebUI End-to-end tests (1)	3m 33s
Test examples (tracetest-jaeger)	39s
CLI e2e tests (8, 2)	2m 31s
Test examples (tracetest-opensearch)	7m 17s
WebUI End-to-end tests (2)	2m 38s
CLI e2e tests (8, 3)	2m 29s
Tracetesting API Server (InMemory)	4m 1s
WebUI End-to-end tests (3)	2m 43s
Test examples (tracetest-tempo)	38s
CLI e2e tests (8, 4)	2m 29s
CLI e2e tests (8, 5)	3m 39s
Test examples (tracetest-provisioning-env)	41s
WebUI End-to-end tests (4)	2m 43s
CLI e2e tests (8, 6)	2m 28s
Tracetesting API Server (NATS)	3m 49s
CLI e2e tests (8, 7)	4m 37s
WebUI End-to-end tests (5)	2m 40s
WebUI End-to-end tests (6)	2m 44s
WebUI End-to-end tests (7)	2m 41s
WebUI End-to-end tests (8)	2m 43s
	1h 21m 7s

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