Fix: Friends’ Schedules Not Displaying Due to Map Feature in PCP

[jamesdoh0109]

Description:
The recent addition of the map feature in PCP introduced a bug where users were unable to view their friends’ schedules. This issue affected the rendering logic, preventing schedules from being properly displayed. The issue primarily stemmed from the course colors (colors used to display course blocks/map pins) not being properly assigned to friends' courses, and also not distinguishing between a friend's schedule and the current user's schedule when displaying the map for the "active" schedule.

This PR includes a fix that:

• Assigns colors to a selected friend's courses upon retrieval
• Adding a check in the map component to be able to display the active schedule correctly (whether it is the current user's schedule or a friend's)

Screenshots:

[el-agua]

Backend changes seem fine.