In lab 49, what is the purpose of creating a branch called "shared" that tracks the "main" branch? <img width="415" height="175" alt="Image" src="https://github.com/user-attachments/assets/aabe94d8-c79e-4045-bf11-8f51910c06df" />
In lab 49, what is the purpose of creating a branch called "shared" that tracks the "main" branch?