[models:tag] - Add image key to model tag #278
[tag] - Provide image key from tag API endpoint #278
[db-api] - Add image key of tag for laws all population
[admin] - Update force tags section as part of `List` at sidebar
[admin-tags-form] - Update form to allow image selection for tags. Closes #278
[boot] - Remove moved tag images from component.json
[render] - Add `tagImages` as a global var for templates
[proposal-article] - Update tag image url source from `tag-images` collection
[sidebar] - Update tag image url source from `tag-images` collection