[CCA] Fix app id for camera app (SWA)

Since we changed the url of CCA to:
  chrome://camera-app/views/main.html
instead of
  chrome://camera-app/src/views/main.html

This CL fixes the consistent parts regarding to the app id.

Bug: 980846
Test: None
Change-Id: I21bd97639bf44383e31147e42c98fd4ac2d3aea5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2519681


Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Commit-Queue: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Commit-Queue: Wei Lee <wtlee@chromium.org>
Auto-Submit: Wei Lee <wtlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824317}