android: fix isExitNode check (#646)

&& takes precedence over ?:, so fix isExitNode to check both IPv4 and IPv6

Updates tailscale/tailscale#15785

Signed-off-by: kari-ts <kari@tailscale.com>

android/src/main/java/com/tailscale/ipn/ui/model/TailCfg.kt

@@ -105,7 +105,7 @@ class Tailcfg {
 
     // isExitNode reproduces the Go logic in local.go peerStatusFromNode
     val isExitNode: Boolean =
-        AllowedIPs?.contains("0.0.0.0/0") ?: false && AllowedIPs?.contains("::/0") ?: false
+        (AllowedIPs?.contains("0.0.0.0/0") ?: false) && (AllowedIPs?.contains("::/0") ?: false)
 
     val isMullvadNode: Boolean
       get() = Name.endsWith(".mullvad.ts.net.")