We currently query the posts table without an order when notifying users of moved posts. Generally the query will return the lowest post number post (b/c ID correlates with post_number in most cases) but not always. This adds an order to the post query in notify_moved_posts job.
Also I removed some if statement nesting with early returns / guard clauses.
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains.
We no longer need to use Rails "require_dependency" anywhere and instead can just use standard
Ruby patterns to require files.
This is a far reaching change and we expect some followups here.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
