(Bug) Delay in Events List update after creating new event

[CoderMayhem]

• Issue Description: When the user creates a new event the addEventPage pops off before the event gets added. The user needs to refresh the list to see the new added event. Also while deleting the event the process is abrupt, showing a progressBar would be better for UX.
• Issue Severity: Low
• Environment Details: Issue in addEventPage.dart
• Observed Behaviour: The add event screen pops off before the event gets added as a result of which the new event does not appear on the list and the user needs to refresh the list a couple of times to see the new event.
• Expected Behaviour: The add event screen should pop off only after the event is created and the event list should be updated.
• Steps to reproduce issue: Create an event in the events section.
• Snapshots/Videos:

delay-err.mp4

• Does this issue need immediate attention? No, the event list does get updated but only after refreshing it a couple of times.
• Are you willing to work on this issue: Yes. Kindly assign this to me @Sagar2366