Feature Request: Support for Google Fonts Integration

[qomarhsn]

Hi, thank you for maintaining this excellent tool — CoverView is super useful for generating stylish post covers quickly!

I’d like to suggest a feature that could significantly enhance customization: support for using fonts from [Google Fonts](https://fonts.google.com/).

Why this matters

While the current selection of fonts is great, allowing users to import any font from Google Fonts would:

• Vastly expand the design possibilities
• Help match branding or blog theme styles more closely
• Make the covers feel more personal and unique

Possible implementation ideas

• Add an option to input the Google Fonts name (with optional weights)
• Dynamically load the font via Google Fonts API when rendering the preview
• Cache the font locally or inline during download to ensure consistent rendering

Optional considerations

• Allow selecting from a curated list of popular Google Fonts in the UI
• Fallback handling in case a font fails to load
• Font preview UI for easier selection

I’d love to hear what you think about this and whether it might fit the project’s direction. If this sounds good, I’d also be happy to help explore the implementation.

Thanks again for your awesome work!