Add a timeout waiting for contextual card loader.

- Intially setting it to 1 second.
- Also changed card appear animation from drop in to fade in. It looks
  less janky if we don't animate any size change.
- And some random code cleanup

Change-Id: I6e73bcf98fd9aa1d76ae002b94ab5b068dfecf1e
Fixes: 120916829
Test: robotests

res/layout/settings_homepage.xml

@@ -25,6 +25,6 @@
         android:id="@+id/card_container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layoutAnimation="@anim/layout_animation_fall_down"/>
+        android:layoutAnimation="@anim/layout_animation_fade_in"/>
 
 </LinearLayout>