[FEATURE] Add formatting ability for report body fields

[chaoticbear]

Overview

Enable formatting in the report body content fields. This could be as simple as markdown with previews or a full WYSIWYG. I suggest we find an appropriate React editor field component with basic formatting options that outputs Markdown.

This should be easy for people who don't know what Markdown is to use and just click a bold button for example.

Goals

• Find an appropriate field editor component which ideally outputs MarkDown
• Should be React based & compatible with our UI component lib (Bootstrap as of now)
• Disable any features that aren't compatible or aren't reasonable for our use case (images/video until we add that feature)
• Editor should be use-able by non-devs who don't know what MarkDown is.
• We may need a separate MarkDown view library for display.
• Decide how to handle any summary versions of those fields.
• Implement Editor in report creation screens
• Implement Editor in report edit screens
• Implement Editor in incident creation screens
• Implement Editor in incident edit screens
• Implement Viewer in report detail screens
• Implement Viewer in incident detail screens
• Implement Viewer in report list screens (if needed)
• Implement Viewer in incident list screens (if needed)

Related Issues

• Consider formatted output for comments, e.g. could use Markdown ranger-ims-server#1162 API side changes may be necessary to accommodate this.