[DISCO-2506] Service Overview Page

[tiftran]

References

JIRA: DISCO-2506

Description

Moved some setup docs into its own separate doc. Was not sure when the tickets says to call out MaxmindDb whether having it in the architecture diagram was sufficient. Diagram uses the theme "dark" since i found the arrows were hard to see in the default theme against a dark background.

PR Review Checklist

Put an x in the boxes that apply

• [ ] This PR conforms to the Contribution Guidelines
• [ ] This PR conforms to the Opsec policies
• [ ] Functional and performance test coverage has been expanded and maintained (if applicable)
• [ ] The [load test: (abort|warn)] keywords are applied (if applicable)
• [ ] Documentation has been updated
• [ ] The PR title starts with the JIRA issue reference, format [DISCO-####], and has the same title