Multiple Instance Connections

[HexaField]

Checklist

• replace usage of 'server' and 'media' IDs with instance server IDs
• move Network to World, rename NetworkTransport to Network
• send actions to specific networks

Summary

This PR changes a few core concepts in the codebase. Firstly, HyperFlux now runs as a single store with multiple topics. Actions can be dispatched to multiple topics, and all actions are processed at the same time.

We have changed how things are scoped, networks are now decoupled from their transports, and worlds are decoupled from network.

References

closes #6078

Checklist

• CI/CD checks pass npm run check
  • Linter passing via npm run lint
  • Typescript passing via npm run check-errors
  • Unit & Integration tests passing via npm run test
  • Docker build process passing via npm run build-client
• If this PR is still a WIP, convert to a draft
• When this PR is ready, mark it as "Ready for review"
• Changes have been manually QA'd
• Changes reviewed by at least 2 approved reviewers

QA Steps

List any additional steps required to QA the changes of this PR, as well as any supplemental images or videos.

Reviewers

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