Merge pull request #5139 from overleaf/ae-pdfjs-viewer-tabindex

Add tabindex to pdfjs-viewer element

GitOrigin-RevId: be7bcba5e3c462b712dcb4deabe3ff8cf3d0233b

services/web/frontend/js/ide/pdfng/directives/pdfJs.js

@@ -155,6 +155,7 @@ export default App.directive('pdfng', ($timeout, localStorage) => ({
 <div
     data-pdf-viewer
     class="pdfjs-viewer"
+    tabindex="0"
     pdf-src='pdfSrc'
     position='position'
     scale='scale'

services/web/frontend/stylesheets/app/editor/pdf.less

@@ -146,6 +146,9 @@
       box-sizing: content-box;
       user-select: none;
     }
+    &:focus-within {
+      outline: none;
+    }
   }
   .progress-thin {
     position: absolute;