Daily View Calendar Improvements

Regarding the Calendar:

1. The default view should display the current month (from the first day to the last day).
2. In the daily view, the calendar should be divided into columns—one for each staff member—to better differentiate their appointments.
3. Each staff member should have a unique color (not all green).
4. In the daily view, all appointments should be fully visible without displaying "+1, +2," etc.
5. In the daily view, Each appointment should display the Customer’s First Name, Last Name, Time, and Service. (The staff member handling the appointment will be distinguished by their column and color, as requested in No. 2).
6. There should be an option for multiple staff member selection in the top filter bar, allowing comparative viewing of appointments for staff members with shared services.