Save button in module creation is lowercase

Description of the bug

The save button is labelled with a lowercase s, which is inconsistent with other buttons across the site.

To reproduce

1. Create a project
2. Click on modules (right side)
3. Click on modularise this project
4. Enter any name and create
5. Click on edit
6. The save button is lowercase

https://github.com/user-attachments/assets/816825b9-6e48-44da-bd38-1c0f5ad5cc10

Expected behavior

The s should be uppercase :)

Additional information

No response