feat(unionvisor): create image for bundle-testnet-4 (#994)

* feat(unionvisor): create image for bundle-testnet-4

* chore(ci): remove irrelevant galois logic

* fix(unionvisor): able to launch unionvisor from container

* feat(ci): added unionvisor bundle to release workflow

* chore: test release workflow

* feat(docker): added unionvisor docker compose file

* docs: added uninvisor insturctins to docs

* chore(ci): undo testing changes

* docs: added unionvisor info to onboarding page

* docs: fix docker link