VPN Hotspot 2.0: Client+ (#39)

Fix #13, #38. I don't have a lot of confidence that this would work very well for every device.

Also here's an SQL command that hopefully somebody could make into the app for me: `SELECT TrafficRecord.mac, SUM(TrafficRecord.sentPackets), SUM(TrafficRecord.sentBytes), SUM(TrafficRecord.receivedPackets), SUM(TrafficRecord.receivedBytes) FROM TrafficRecord LEFT JOIN TrafficRecord AS Next ON TrafficRecord.id = Next.previousId WHERE Next.id IS NULL GROUP BY TrafficRecord.mac;`

mobile/src/main/res/layout/dialog_nickname.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+    <EditText
+        android:id="@android:id/edit"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="20dp"
+        android:layout_marginEnd="20dp"
+        android:importantForAutofill="no"
+        tools:text="Nick">
+        <requestFocus/>
+    </EditText>
+</FrameLayout>

mobile/src/main/res/layout/listitem_client.xml

@@ -11,6 +11,8 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:focusable="true"
+        android:background="?android:attr/selectableItemBackground"
         android:padding="16dp">
 
         <ImageView
@@ -32,15 +34,15 @@
             android:orientation="vertical">
 
             <TextView
-                android:layout_width="match_parent"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@{client.title}"
                 android:textAppearance="@style/TextAppearance.AppCompat.Subhead"
-                android:textIsSelectable="true"
+                android:textIsSelectable="@{client.record.nickname.length() == 0}"
                 tools:text="01:23:45:ab:cd:ef%p2p-p2p0-0"/>
 
             <TextView
-                android:layout_width="match_parent"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@{client.description}"
                 android:textIsSelectable="true"

mobile/src/main/res/layout/listitem_interface.xml

@@ -41,7 +41,7 @@
                 tools:text="wlan0"/>
 
             <be.mygod.vpnhotspot.widget.AutoCollapseTextView
-                android:layout_width="match_parent"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@{data.text}"
                 android:textIsSelectable="@{data.selectable}"

mobile/src/main/res/layout/listitem_repeater.xml

@@ -44,7 +44,7 @@
                     android:textAppearance="@style/TextAppearance.AppCompat.Subhead"/>
 
                 <be.mygod.vpnhotspot.widget.AutoCollapseTextView
-                    android:layout_width="match_parent"
+                    android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="@{data.addresses}"
                     android:textIsSelectable="true"