Custom Fonts support

Currently, we understand that custom font support requires importing a font via JSON, and users must also install the same fonts on their systems. To streamline this process, we propose the following enhancement:

1. Custom Font Storage on Server: Implement a custom storage option on the server where fonts can be uploaded and stored.
2. Centralized Font Management: Integrate these fonts into the Power Service, allowing all users to access and view texts in custom fonts without needing to install the fonts on their individual systems.

This solution will simplify font management, ensuring consistency in font usage across all users and enhancing the overall user experience.