v0.44.4

Changed

• README slimmed down + new hero image. Replaced the aged 0.20-era hero with a new top-down shot of six e-ink panels (framed Inkys, bare Waveshare boards driven by ESP32, a jailbroken Kindle) all painting different dashboards from one Tesserae server. The five admin/UI screenshots that lived inline moved to a new docs/gallery.md wiki page.

• Wiki nav cleanup. New top-level Gallery (admin UI). Renamed widget pages to Bundled widgets + Community catalog so the word "Gallery" only means one thing.