WIP: Resolve "Canvas announcements"

Summary

The retreival of Canvas announcements from their portfolio course and the assessment course. As well as, alpha environmental restarting fix.

Closes #23 (closed)

Changelog

• Fixed🐛 Restart ALPHA env but not test env

Inside Public/

• Added✨ Proxy to announcement api learning/
• Refactored♻️ learning.py to new middleware typology
• Security🔒 Require the user_id upon /lti/launch

Inside Learning/

• Added✨ Retreiving announcements
• Added✨ getAssessmentCourses from user
• Moved🚚 Router removed from routes folder

Breaking changes

• Learning/'s Router no longer in routes folder.

Before merge

• Changed code has been reviewed
• Tested to build, start and is usable