Stop/resume transaction fee updates

[saledjenic]

The app does have the fee updates timeout, which is currently set to 5 minutes, after which the app stops sending wallet.suggested.routes signal.

Within this issue we need to:

• add a new statusgo signal that will notify the client that sending updates stopped
• add another API endpoint that will resume the current request for the best route, using the same input router parameters
• add a notification to the UI that will let the users know about that
• add a button that will allow users to resume subscription for fees for the current input parameters

Related Figma:

• https://www.figma.com/design/RfsBP6hKbUvaAjQUrpvMq5/Send?node-id=1-61602&m=dev