Fixed UI issue making un-selected search engines looking like they are selected on the onboarding page (closes https://github.com/zen-browser/desktop/issues/4040) (https://github.com/zen-browser/desktop/issues/4035)

src/browser/components/zen-welcome/welcome.css

@@ -167,7 +167,7 @@ h2 {
   flex-direction: column;
   align-items: center;
   align-content: space-between;
-  border: 2px solid var(--arrowpanel-border-color) !important;
+  border: 2px solid transparent !important;
   transition: all 0.1s ease-in-out !important;
   margin: 0 10px;
   border-radius: 7px;
@@ -420,10 +420,6 @@ input[type='checkbox'] {
   height: -moz-available;
 }
 
-#themeList > svg:nth-child(1) {
-  margin-right: 10px;
-}
-
 #themeList > svg.selected {
   border: 3px solid var(--zen-colors-primary);
 }

src/browser/components/zen-welcome/welcome.html

@@ -46,7 +46,6 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
           <p data-l10n-id="welcome-dialog-import-subtext"></p>
         </div>
         <button
-          class="primary"
           id="importBrowser"
           data-l10n-id="welcome-dialog-import-action"
         ></button>