docs: rewrite and restructure docs #1664

Job	Run time
Determine Image Tag	4s
test / Build All ev-node Binaries	1m 45s
lint / golangci-lint	27s
proto / buf-check	8s
test / Run Integration Tests	2m 5s
lint / hadolint	11s
test / Go Mod Tidy Check	35s
test / Run Unit Tests	2m 54s
lint / yamllint	11s
lint / markdown-lint	2m 42s
lint / goreleaser-check	7s
docker / Build ev-node-testapp	17m 3s
docker / Build ev-node-evm	15m 55s
test / Run EVM Execution Tests	2m 17s
test / Run E2E System Tests	14m 46s
test / Combine and Upload Coverage	13s
docker-tests / Docker E2E Tests	6m 59s
docker-tests / Docker Upgrade E2E Tests	3m 44s
docker-tests / Docker Compatibility E2E Tests	5m 1s
	1h 17m 7s

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