------ Fixing a bug with fetching meta information from the API (Piccolo version, site name etc). When a user isn't logged in, it would fail. It now calls the API again after a successful login - courtesy of sinisaos.
------ * Can override the nav bar title (defaults to `Piccolo Admin`) - courtesy of sinisaos. * Other nav bar improvements, such as truncating long usernames.
------ * Removed dependency number for ``uvicorn`` and ``Hypercorn`` - only the very high level API is being used, which is unlikely to change, and was causing issues for some users when installing via Poetry. * Bumped node dependencies.