Discussion Thread, Branching and Tag Feature

In this release, we implement the following features-

• Discussion thread for members to ask/share thoughts with classmates
• Master Branch for members to find the most upvoted note for each date with one click
• Create and assign tags to notes for better organization and structure

We also tested our API endpoints and fixed bugs on both frontend and backend. A few of the major bug fixes are

• Bug fix to limit the range of date selection to prevent users from selecting a very large range( eg. 1900-2100 or 200 years)
• Bug fix to show feedback on invalid selection during group creation (eg. endTime ends before startTime.)
• Bug fix to allow user toggle (add/delete) notes from personal branch
• ... And many more.