Views: Create tests for edit_event_page.dart

[palisadoes]

The Talawa code base needs to be 100% reliable. This means we need to have 100% test code coverage.

Tests need to be written for file lib/views/after_auth_screens/events/edit_event_page.dart

• When complete, all methods, classes and/or functions in the file will need to be tested.
• These tests must be placed in a single file with the name test/views/after_auth_screens/events_test/edit_event_page_test.dart. You may need to create the appropriate directory structure to do this.

IMPORTANT:

Please refer to the parent issue on how to implement these tests correctly:

• Complete Code Coverage for Views #1217

PR Acceptance Criteria

• When complete this file must show 100% coverage when merged into the code base. This will be clearly visible when you submit your PR.
• The current code coverage for the file can be found here. If the file isn't found in this directory, or there is a 404 error, then tests have not been created.
• The PR will show a report for the code coverage for the file you have added. You can use that as a guide.
• You can verify your own code coverage by creating an account at Codecov.io

[guptapriyanshu7]

@palisadoes Please assign this to me.