This PR swaps numbers for two circular progress components for the
models that support displaying token usage broken down by input and
output tokens. Here's how the UI looks like:

<img width="500" height="386" alt="Screenshot 2026-03-27 at 5  03@2x"
src="https://github.com/user-attachments/assets/1fa01f6e-a8d8-40fd-a663-b95de6c79174"
/>

Release Notes:

- Agent: Make token usage display consistent between the models that
support displaying split usage (input and output) and those that don't.