Print Preview: Move border to correct side for new layout

Bug: 1001958
Change-Id: I1c90122d4bc43ae9fb073d78ffad5b5516689cd7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1809667Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697431}

chrome/browser/resources/print_preview/ui/sidebar.html

@@ -48,6 +48,11 @@
         flex-direction: column;
       }
 
+      :host([new-print-preview-layout]) {
+        border-inline-end: none;
+        border-inline-start: var(--print-preview-settings-border);
+      }
+
       @media (prefers-color-scheme: dark) {
         :host {
           background-color: rgba(255, 255, 255, .04);