Add actions to create message, and dismiss. Dispatch message actions, when post to server and get the response

Add Comment section to Applicant profile, create some action to handle the creation and get the notes by profile

You can now send solution without a file, the admin will see a 'No file' tag.

Homework permission level added and new axios import for homework action.

You can now create new tasks and upload a solution (or more) for them.