UI <=> Background - Action queue for service worker interation

Epic: Allow the UI to read state from the storage system
https://github.com/MetaMask/metamask-extension/issues/18054

We will have to decide how to handle interactions with the service worker before it starts, but the action-queue should theoretically work for this and fire those actions when the service worker starts back up.

**Tasks:**
TODO

Start with the linked epic (#18054) to understand the storage-state requirement, then locate the existing UI/background action-queue and service-worker startup paths. The Tasks section is still TODO, so completion criteria and tests must be defined before implementation.

Written by the indexing model from the issue text.