OOBE: Move primary action button to the right.

Also make it blue.

Bug: 954572
Change-Id: I1fbd008c4280a98f69da50858342b9e9d3fb1902
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1912706Reviewed-by: Denis Kuznetsov [CET] <antrim@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714897}

chrome/browser/resources/chromeos/login/screen_gaia_signin.html

@@ -25,16 +25,17 @@
               disabled="[[!navigationEnabled_]]"></oobe-back-button>
           <div class="flex">
           </div>
-          <oobe-text-button id="primary-action-button"
-              on-tap="onPrimaryActionButtonClicked_"
-              hidden="[[!primaryActionButtonLabel_]]"
-              disabled="[[!primaryActionButtonEnabled_]]"
-              >[[primaryActionButtonLabel_]]</oobe-text-button>
           <oobe-text-button id="secondary-action-button"
               on-tap="onSecondaryActionButtonClicked_"
               hidden="[[!secondaryActionButtonLabel_]]"
               disabled="[[!secondaryActionButtonEnabled_]]"
               >[[secondaryActionButtonLabel_]]</oobe-text-button>
+          <oobe-text-button id="primary-action-button"
+              on-tap="onPrimaryActionButtonClicked_"
+              hidden="[[!primaryActionButtonLabel_]]"
+              disabled="[[!primaryActionButtonEnabled_]]"
+              inverse
+              >[[primaryActionButtonLabel_]]</oobe-text-button>
         </div>
       </div>
     </oobe-dialog>