Rails 6 Active admin, add basic functionality

Job ID: 34891879

Budget: $30 – $250 USD

I want to add some functionality to an existing rails app, a school's admin website.
Relevant gems:
rails 6.1.6, activeadmin, activeadmin_addons, arctic_admin, activeadmin_quill_editor, cancancan.

Add file attachment functionality to announcements, messages and events.
Add quill editor to messages.
(currently work in plain text, without quill.)
Add single view of an event to show details.
(currently events are only seen at the calendar, titles in a day)
Improve dashboard: Show next events and unread messages in a right bar.
If there's nothing to show, display a logo and welcome message.
Add documents section and browse them as a library.
Related categories: PHP JavaScript Ruby on Rails HTML Git