[iOS] Redirect to external browser on iPad in Discover

[sergeymomot]

On iPad after clicking Enroll button, a request appears to redirect to an external browser. At the same time, the registration page opens on the iPhone and user.
Steps:
(preconditions: you should be logged out)

1. Open Discover page on iPad
2. Find any available Course and tap on Enroll button
3. Result: a request to redirect to an external browser appears

Simulator.Screen.Recording.-.iPad.Pro.12.9-inch.6th.generation.-.2024-02-28.at.12.10.47.mp4

Expected result: there should be a redirect to the Sign up page

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-02-28.at.12.12.10.mp4

[rnr]

fixed on backend side