[iOS] Fix window insets in iOS

[pushpalroy]

Currently using https://github.com/mori-atsushi/insetsx for supporting window insets.

In iOS, the window will automatically move if the focused element is obscured by the software keyboard.
But we can not disable it. This is a problem on the Compose Multiplatform side.

Issues tracked:

1. Insets padding issue in iOS mori-atsushi/insetsx#21
2. iOS TextField, Different behavior strategies on appearing the keyboard (related to focusable TextField) JetBrains/compose-multiplatform#3128
3. Disable screen move up in IOS JetBrains/compose-multiplatform#2595