Fix SwiftUI Runtime Errors

[thecoolwinter]

Description

Quick fix for some runtime errors that have popped up due to recent PRs. One has to do with updating terminal titles, and the other with observing and publishing an initial value. See comments for more details.

Related Issues

N/A

Checklist

• [x] I read and understood the contributing guide as well as the code of conduct
• [x] The issues this PR addresses are related to each other
• [x] My changes generate no new warnings
• [x] My code builds and runs on my machine
• [x] My changes are all related to the related issue above
• [x] I documented my code

Screenshots

Not UI related.