CCA: Fix shutter button vertical center to 180px

Bug: b/172340037
Test: Manuall verify with UX spec.
Change-Id: I4b831b3e73314441793adf98f7e19fe4d2866906
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2596714Reviewed-by: Shik Chen <shik@chromium.org>
Commit-Queue: Inker Kuo <inker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#839562}

chromeos/components/camera_app_ui/resources/css/main.css

@@ -209,10 +209,6 @@ body.review-result #shutters-group {
   display: none;
 }
 
-body.should-handle-intent-result #shutters-group {
-  bottom: calc((var(--bottom-line) * 2) + 8px + (var(--shutter-size) / 2));
-}
-
 body.tablet-landscape .actions-group {
   flex-direction: column-reverse;
 }
@@ -804,7 +800,7 @@ html[dir=rtl] body.view-expert-settings .right-stripe {
   --left-line: 44px;
   --right-line: 50px;
   --small-icon: 40px;
-  --shutter-vertical-center: calc((var(--bottom-line) * 2) + 204px);
+  --shutter-vertical-center: 180px;
 
   align-items: center;
   display: flex;