* Added an alt implementation which shows Recently Added chapters. No extra grouping is performed if multiple chapters per volume.
* Started working on a grouping implementation for series.
* Disabled the code for bookmarks cleanup as there is some critical issue in there.
* Implemented a Series Group activity stream which shows recently updated series and providers a count badge showing how many new chapters/volumes were added in that series.
* Removed the bookmark disabling code
* Cleaned up code
* One more code cleanup
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