UI: Increased spacing on AIDE prompt screen.

Increased the spacing between oauth-enroll-attribute-prompt-message and gaia-input-card.

Review URL: https://codereview.chromium.org/1148113002

Cr-Commit-Position: refs/heads/master@{#330919}

chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment_webview.css

@@ -186,3 +186,7 @@ html[dir=rtl] #oauth-enroll-back-button {
 #oauth-enroll-skip-button {
   min-width: 0;
 }
+
+#oauth-enroll-attribute-input {
+  padding-top: 24px;
+}

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

@@ -33,7 +33,8 @@
             <a href="#" id="oauth-enroll-learn-more-link"
                class="oauth-enroll-link"
                i18n-content="oauthEnrollExplaneAttributeLink"></a>
-            <gaia-input-form i18n-values="buttonText:oauthEnrollNextBtn">
+            <gaia-input-form id="oauth-enroll-attribute-input"
+                             i18n-values="buttonText:oauthEnrollNextBtn">
               <gaia-input id="oauth-enroll-asset-id"
                           type="text"
                           i18n-values="label:oauthEnrollAssetIdLabel">