[Feature Request] Support Grimmory, a self-hosted digital library manager (Fork from Booklore)

[trixor]

Description

Homepage currently supports a native widget for Booklore. However, the original Booklore project had been discontinued by its authors (though it currently seems active-ish again). The self-hosted community has rallied around Grimmory (hosted at grimmory-tools/grimmory) as the, active, and community-maintained fork/successor.

Because Grimmory is a direct fork of Booklore, it maintains full API compatibility for token authentication (auth/login), library counting (/libraries), and catalog parsing (/books). I believe this makes the integration easier to do.

Grimmory stars: 3.3K and growing

I'm happy to try and create the PR to support this integration, though I'm fairly new to actively contributing code to the Github ecosystem

Original booklore feature request: #5625

Other

No response