Moving JoinContactActivity and updating style

Change-Id: Ie42a751d53f8ad8911bcb796754889514cc665ea
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index f8fccae..7d1b2c7 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -298,7 +298,7 @@
         />
 
         <!-- An activity for joining contacts -->
-        <activity android:name="JoinContactActivity"
+        <activity android:name=".activities.JoinContactActivity"
             android:theme="@style/JoinContactActivityTheme"
             android:clearTaskOnLaunch="true"
         >