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