Pause during record on toolbar should put recording into stop state

### Bug description

If the User presses 'Pause' button within the toolbar, it should act the same as pressing 'Spacebar' key during recording.

### Steps to reproduce

1. Launch AU4
2. Start recording
3. Press 'Pause' on toolbar
4. Observe the recording state still being shown as active

### Expected behavior

Pause on toolbar acts as 'Spacebar' while recording.

### Actual behavior

Pause on toolbar does not act as 'Spacebar' while recording.

### Audacity Version

4db0542

### Operating system

OS independent

### Additional context

https://github.com/user-attachments/assets/b16a1875-44fd-4234-bbdc-e668339ff51f

Start at the toolbar Pause action and the Spacebar handling used during recording, then compare how each updates the recording state. Reproduce the issue using the listed steps and confirm that activating Pause leaves the recording in the same stop state as Spacebar.

Written by the indexing model from the issue text.