Patch Release for Mizoram Schools (Update - I)

1. LMS/CMS: Validation fixed for Addition of asset and asset content. The delete files option now available for asset creator and super user.
2. CMS: Displaying cards for alternate language below the original source in the Activity Alternate Language detail.
3. CMS: Activity player for authors made full screen.
4. LMS/CMS: Displaying contributors(Buddy) names at notebook/activity/resource/asset comments instead of creator's username.
5. CMS: Translation UI fixes along with background styling.
6. CMS: Additional field of Display name added to activity,lesson create/edit forms.
7. LMS: Fruits and Flowers added in the Buddy pannel.
8. CMS: Translation form modified with editor on the top.
9. CMS: General toolbar with minimal features added in translation form.
10. CMS: Names replaced with display names in Activity Card listing.
11. CMS: Authorization/Validation implemented for 'Drafts' tab. If user is admin/creator of any course, then user will have access to dratfs.
12. LMS/CMS: Rotio Patterns, Food sharing tool made available on the platform.
13. CMS: Group Analytics open for super user and group admins. Normal user can see their individual performance.
14. LMS/CMS: Super user,creator,group admin can edit/delete the comments.
15. Added new field in Models.Group class required for section and sub-section.
    15.1 Updated sync_existing_documents.py to accomodate these changes.
    15.2 After taking this update, run: fab update_data