Interrapt G34

Environment:
https://qainterrapt.brainster.xyz/dashboard
Browser: Google Chrome Version 131.0.6778.109 (Official Build) (64-bit)

Description:
Users should not be able to create a webinar with an image larger than 5 MB

Precondition:
User must be logged in Interrapt

Test steps:

1. Navigate to the "Webinar" menu
2. Click the 'Create' button
3. Fill in all required webinar details (title, description, date, and time)
4. Upload an image larger than 5 MB in the "Image" field
5. Click the "Create" button

Excepted results:
The system should reject the image upload if the file exceeds 5 MB. In such cases, a validation message should be displayed in red letters, stating: "The image field is required." The user should not be allowed to proceed until a valid image (5 MB or smaller) is uploaded.

Actual result:
The user is able to create a webinar with an image larger than 5MB