Feature/exit node Android (#1916)

Support exit node on Android.
With the protect socket function, we mark every connection that should be used out of VPN.

client/internal/routemanager/manager.go

@@ -155,7 +155,7 @@ func (m *DefaultManager) SetRouteChangeListener(listener listener.NetworkChangeL
 
 // InitialRouteRange return the list of initial routes. It used by mobile systems
 func (m *DefaultManager) InitialRouteRange() []string {
-	return m.notifier.initialRouteRanges()
+	return m.notifier.getInitialRouteRanges()
 }
 
 // GetRouteSelector returns the route selector
@@ -261,10 +261,7 @@ func (m *DefaultManager) clientRoutes(initialRoutes []*route.Route) []*route.Rou
 
 func isPrefixSupported(prefix netip.Prefix) bool {
 	if !nbnet.CustomRoutingDisabled() {
-		switch runtime.GOOS {
-		case "linux", "windows", "darwin", "ios":
-			return true
-		}
+		return true
 	}
 
 	// If prefix is too small, lets assume it is a possible default prefix which is not yet supported