Updating Push Notification Subscription for MS Edge

[jason-ibisi]

Description

Fixes error with updating the endpoint for Push Notifications on MS Edge

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added necessary inline code documentation
• I have added tests that prove my fix is effective and that this feature works
• New and existing unit tests pass locally with my changes