Suggest on the mechanism for the user authorization for gamepads

[xingri]

From Safari 18 release, new user prompt has been added to allow the gamepad usage on the VR device.

From the contents provider's stand point, we hope to have the consistent interfaces across browsers.

• Need to provide consistent mechanism to determine whether the User prompt required or not, in case the contents need to explain the needs of the permission.
• Need to have the consistent setting UI for guiding the users to allow the permission.