Implement MAC lookup (#68)

* Implement MAC lookup

* Refine error processing

* Use long to store MAC consistently

* Link back to macvendors.co

* Undo some havoc

* Do not show mac spans for TV

* Show MAC and IP in a consistent order

* Add IP spans by ipinfo.io

* Add SpanFormatter

* Fix IPv6 ipinfo.io link

* Refine SpanFormatter

* Fix pressing the link

mobile/src/main/java/be/mygod/vpnhotspot/App.kt

@@ -8,8 +8,9 @@ import android.content.res.Configuration
 import android.net.ConnectivityManager
 import android.net.wifi.WifiManager
 import android.os.Build
-import android.os.Handler
 import android.preference.PreferenceManager
+import androidx.browser.customtabs.CustomTabsIntent
+import androidx.core.content.ContextCompat
 import androidx.core.content.getSystemService
 import be.mygod.vpnhotspot.room.AppDatabase
 import be.mygod.vpnhotspot.util.DeviceStorageApp
@@ -47,12 +48,18 @@ class App : Application() {
     }
 
     lateinit var deviceStorage: Application
-    val handler = Handler()
     val pref: SharedPreferences by lazy { PreferenceManager.getDefaultSharedPreferences(deviceStorage) }
     val connectivity by lazy { getSystemService<ConnectivityManager>()!! }
     val uiMode by lazy { getSystemService<UiModeManager>()!! }
     val wifi by lazy { getSystemService<WifiManager>()!! }
 
+    val hasTouch by lazy { packageManager.hasSystemFeature("android.hardware.faketouch") }
+    val customTabsIntent by lazy {
+        CustomTabsIntent.Builder()
+                .setToolbarColor(ContextCompat.getColor(this, R.color.colorPrimary))
+                .build()
+    }
+
     val operatingChannel: Int get() {
         val result = pref.getString(KEY_OPERATING_CHANNEL, null)?.toIntOrNull() ?: 0
         return if (result in 1..165) result else 0