* Updated some signatures to avoid a ToArray() within a loop.
* Use UpdateSeries directly when adding new series, rather than a modified version for new series only.
* Refactored some messages for scanner loop to reduce duplicate code and write messages more clear. Hooked in a RefreshMetadataProgress event (no UI changes).
* Fixed a bug on docker where backup service was using different logic than non-docker, which isn't needed after config change last release.
* Allow user to make more than 1 backup per day
* Implemented a select all checkbox for library access modal