Bundle and serve admin (#317)

* WIP with admin bundling

* Current state of the admin is bundled

* Update admin bundler to work with binary bundling

* Log detail about the admin interface. Closes #312

* Move bundle script to the build dir

* Update to current version of admin

* Commit updated API documentation

Co-authored-by: Owncast <owncast@owncast.online>

.gitignore

@@ -25,6 +25,7 @@ webroot/static/content.md
 hls/
 dist/
 data/
+admin/
 transcoder.log
 chat.db
 .yp.key