closes https://github.com/TryGhost/Team/issues/2463
- it merges the similar history events by adding additional properties
to the events data
- `skip` was added to the current event when the next event is similar to
it, so that the event isn't output on the frontend
- `count` was added to the last item of the similar events and it's used
for outputting the number of repeated similar events
no issue
Since `ember-moment@10.0` it's not been necessary to use the `ember-cli-moment-shim` package, with `moment` instead being usable directly via `ember-auto-import`. Getting rid of the shim package is necessary for compatibility with `embroider`, Ember's new build tooling.
- dropped `ember-cli-moment-shim` dependency
- added `moment-timezone` dependency and updated all imports to reflect the different package
- worked around `ember-power-calendar` having `ember-cli-moment-shim` as a sub-dependency
- added empty in-repo-addon `ember-power-calendar-moment` to avoid `ember-power-calendar` complaining about a missing package
- added `ember-power-calendar-utils` in-repo-addon that is a copy of `ember-power-calendar-moment` but without the build-time renaming of the tree for better compatibility with embroider
refs https://github.com/TryGhost/Toolbox/issues/356
- this commit updates the route to `/settings/history` and moves all the
files to their new name so we can avoid further cleanup down the line
