Create the WYSIWYG text editor for posts, application process, etc.

[holtzmak]

• [x] Add a text editor utility to be used throughout the application

Consider using the plugin for a markdown editor. Since Flutter isn't an HTML renderer, markdown is next up for similar behaviour and ease of use.

Another option could be an "HTML" editor like flutter_quil (limited ability to work on web).

Yet another option is zefyr, but it has not been exported to null-safety and is less competent than the other options.

Attachments might need to be done separately.

[holtzmak]

Unfortunately, none of these plugins have been migrated to null-safety. The closest is flutter_quill.

• [ ] I'll keep an eye on that PR and begin using the editor when it's ready.