No Landscape mode for tablets

### Issue Details

When using the tablet horizontally, you have to change the tablet position to vertical in order to use AdGuard VPN. There is no landscape mode for tablets.

This is inconvenient when the tablet is lying on the table in a horizontal position or on a stand. Also when working with streaming services, where you often need a VPN, a horizontal position is implied

### Proposed solution

Adapt the AdGuard VPN interface for horizontal position

### Alternative solution

Not to redo the interface completely, when working in horizontal mode make the same interface with frames on the sides