This fixes#222. Note that it only renames it in the UI, not in the code or the TOML metadata, as that would require a ton of changes, and possibly break old links.
This adds thumbnails to the gallery (#26). Mandalas are not currently animated (I'm worried that doing this for lots of mandalas would severely impact performance). It also adds a loading throbber for the gallery page.
If a gallery item can't be deserialized, a sad face is shown in place of a thumbnail, with a more detailed explanation on mouseover.
Currently the implementation is not as clean as I'd like. I'll clean it up in a separate PR, as it will involve factoring out logic from the creature and mandala pages (similar in concept to #189 / #190), which would add lots of noise to this diff.
This implements an _extremely_ basic Firebase-powered gallery (#26). At present it's just a list of links to creatures/manadalas that open in new tabs, without preview thumbnails. Or the ability to submit new entries. These features will be forthcoming in future PRs.
As with #215, this decouples the view logic from Firebase so we can use something else in the future if we want.
Atul Varma