* feat: add notification table * feat: add notification banner, use unread gem for notification management * feat: add notifications page and remove unread_notification.rb * feat: add blank homepage, update routing and tests * feat: add welcome message and thoroughly test routing * refactor: lint * feat: update tests * CLDC-3061 Add guidance page (#2121) * Add guidance page * Link to guidance from start page * feat: test home/start paths explicitly * feat: add notification table * feat: add notification banner, use unread gem for notification management * feat: add notifications page and remove unread_notification.rb * feat: default p tag around sanitized page content * feat: add active scope * feat: use newest active unread/unauthenticated notification and update start page * feat: add tests of notification behaviour and routing and refactor * refactor: lint * feat: update Gemfile.lock * feat: add timestamps to readmark table * feat: update gemfile.lock * refactor: lint * feat: test notifications page doesn't show notifications and code simplification * feat: move notification helper methods to notifications_helper.rb --------- Co-authored-by: kosiakkatrina <54268893+kosiakkatrina@users.noreply.github.com>