Accommodate for early morning, late night and saturday courses in the Calendar grid

[IsaDavRod]

Right now, if a students adds a course that is at 6-7am, or 10pm, or on a Saturday, the course is added to the Async/Other footer section. Create a PR that accommodates for early morning, late night and Saturday courses in the Calendar grid ONLY if the course is within those times. If not, keep the grid as M-F 8am-9pm. If a Saturday courses is added, then the Calendar grid should be M-Sat 8am-9pm. If a course at 10pm is added, then the Calendar grid should be M-F 8am-10pm. Only extend the grid to fit the course that was added, otherwise keep the grid how it is now (M-F 8am-9pm).