AtoM 2.7.3 release

[Sarah Romkey]

Good morning AtoM users-

The Maintainers have prepared a 2.7.3 release of AtoM to address some bugs we found in the Bootstrap 5 theme and fix a translations snafu that happened in the last release resulting in some missing translation files. They also recently created a CLI tool for slug re-naming and that is included also. Please see the release note here: https://github.com/artefactual/atom/releases/tag/v2.7.3

Cheers,

Sarah