Add ability for users to click on age ranges and trigger warnings from a predetermined tag list when they review books. If enough users suggest an age range tag or trigger warning, it can be applied to a book page. (e.g., Ages 4-6, Ages 8-12, YA 12+, Adult 18+, Adult Situations, Sex, Violence, etc.)

Users can then click on a tag and be taken to a book page/list within that age range to make book vetting/recommendations easier for teachers, families, and book clubs.

Note: This issue originally was for age ranges & content warnings. Content warnings are now added.