feat: use websocket for non-EVM transactions updates

[mikesposito]

Explanation

[WIP]
AccountActivityService is being updated to subscribe to all account's scopes whenever a websocket connection is established, or the selected account changes. Previously, the service was subscribing to the account passed by the AccountsController event payload, which always refers to the EVM scope.

Moreover, MultichainTransactionController is being updated to listen to AccountActivityService events to update transactions statuses when final.

References

[WIP]

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them