Implement UI for calendar integration and meeting scheduling

[Madhawa97]

Is your feature request related to a problem? Please describe.
Currently users need to schedule meetings outside of the platform.

Describe the solution you'd like
Create a user interface for scheduling meetings and integrating with external calendar services.

• Design and implement a meeting scheduling interface
• Create a calendar view component to display scheduled meetings
• Add options to integrate with external calendar services (Google Calendar)
• Ensure the scheduling interface is responsive and works on mobile devices

Describe alternatives you've considered

Additional context
Related backend issue: sef-global/scholarx-backend#156