fix manage space activity

AndroidManifest.xml

@@ -61,7 +61,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/Theme.ownCloud.Toolbar"
-        android:manageSpaceActivity=".ui.activity.ManageSpaceActivity">
+        android:manageSpaceActivity="com.owncloud.android.ui.activity.ManageSpaceActivity">
         <activity
             android:name=".ui.activity.FileDisplayActivity"
             android:label="@string/app_name"
@@ -243,9 +243,7 @@
             <meta-data android:name="android.app.searchable"
                        android:resource="@xml/users_and_groups_searchable"/>
         </activity>
-        <activity android:name=".ui.activity.ManageSpaceActivity"
-                  android:label="@string/manage_space_title"
-                  android:theme="@style/Theme.ownCloud" />
+        <activity android:name=".ui.activity.ManageSpaceActivity"></activity>
     </application>
 
 </manifest>