Remove action receptors

[HexaField]

Summary

🤖 Generated by Copilot at 6b20990

This pull request refactors and simplifies the state management and notification handling logic in various files across the client, editor, engine, and instance server packages. It removes unused and deprecated code, reduces unnecessary dependencies and re-renders, and improves code readability and performance. It also adds some state tracking and queueing features to the SpectatorComponent and the SceneLoadingSystem respectively.

References

closes #8305

Explanation

🤖 Generated by Copilot at 6b20990

• Removed NotificationAction class and replaced notification actions with direct mutations of snackbar state using NotificationState (link, link, link, link, link, link, link)
• Removed EngineActions and replaced engine actions with direct mutations of isEngineInitialized, sceneLoaded, and spectating states using EngineState and getMutableState (link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link)
• Removed isTeleporting state from EngineState and moved it to PortalState as activePortalEntity state to track the current portal entity (link, link, link, link)
• Added defineActionQueue to PortalSystem and SceneLoadingSystem to handle sceneLoaded actions and set sceneLoading and sceneLoaded states accordingly (link, link, link)
• Removed unused imports of AudioEffectPlayer, matches, and dispatchAction from various files (link, link, link, link, link)

🤖 Generated by Copilot at 6b20990

We've simplified the state, me hearties, yo ho ho
We've cut out all the actions, and the code is good to go
We've used direct mutations, and the hooks that we all know
We've made the engine faster, and the portals easier to show

QA Steps

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

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

[aditya-mitra]

Looks good to me!
Some deprecated functions are now nicely removed 🎉