refactor(routerservice): remove arbitary service

[aditya-mitra]

Summary

🤖 Generated by Copilot at 4882305

This pull request replaces the RouterService class with a reactive RouterState object for routing logic in the client core and editor packages. This makes the code simpler, more consistent, and more reactive. It updates the imports and calls to RouterState in various components and pages.

References

implements #8305

Explanation

🤖 Generated by Copilot at 4882305

• Add a navigate method to the RouterState object to update the pathname state and trigger a navigation to a given URL (link)
• Remove the RouterService class, which is no longer needed after the refactoring to use RouterState (link)
  • EngineHooks.tsx, which contains custom hooks for the engine logic (link, link)
  • LoadLocationScene.tsx, which contains the component for loading a location scene (link, link)
  • RoomMenu.tsx, which contains the component for the room menu in the user menu (link, link, link)
  • editor.tsx, which contains the component for the editor page (link, link)
  • EditorContainer.tsx, which contains the component for the editor container (link, link, link)
  • ScenesPanel.tsx, which contains the component for the scenes panel in the assets panel (link, link, link)
  • ProjectsPage.tsx, which contains the component for the projects page (link, link)

🤖 Generated by Copilot at 4882305

No more service, only state
We react to our fate
RouterState is our guide
Through the scenes we create

QA Steps

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Checklist

• If this PR is still a WIP, convert to a draft
• When this PR is ready, mark it as "Ready for review"
• ensure all checks pass
• Changes have been manually QA'd
• Changes reviewed by at least 2 approved reviewers