Format plural for numClients

mobile/src/main/java/be/mygod/vpnhotspot/manage/TetherManager.kt

@@ -201,9 +201,10 @@ sealed class TetherManager(protected val parent: TetheringFragment) : Manager(),
         @TargetApi(30)
         private fun formatCapability(locale: Locale) = capability?.let {
             val capability = SoftApCapability(it)
+            val numClients = numClients
             val maxClients = capability.maxSupportedClients
             val supportedFeatures = capability.supportedFeatures
-            app.resources.getQuantityText(R.plurals.tethering_manage_wifi_capabilities, maxClients).format(locale,
+            app.resources.getQuantityText(R.plurals.tethering_manage_wifi_capabilities, numClients ?: 0).format(locale,
                 numClients ?: "?", maxClients, sequence {
                     var features = supportedFeatures
                     if (features != 0L) while (features != 0L) {

mobile/src/main/java/be/mygod/vpnhotspot/net/wifi/WifiApManager.kt

@@ -76,9 +76,10 @@ object WifiApManager {
         /**
          * Called when number of connected clients to soft AP changes.
          *
+         * It is not recommended to use this legacy method on API 30+.
+         *
          * @param numClients number of connected clients
          */
-        @Deprecated("onConnectedClientsChanged")
         fun onNumClientsChanged(numClients: Int) { }
 
         /**

mobile/src/main/java/be/mygod/vpnhotspot/root/WifiApCommands.kt

@@ -68,7 +68,6 @@ object WifiApCommands {
 
                 override fun onStateChanged(state: Int, failureReason: Int) =
                         push(SoftApCallbackParcel.OnStateChanged(state, failureReason))
-                @Suppress("OverridingDeprecatedMember")
                 override fun onNumClientsChanged(numClients: Int) =
                         push(SoftApCallbackParcel.OnNumClientsChanged(numClients))
                 @RequiresApi(30)