frontend: remove tabindex=0 (confuses password managers)

frontend/src/documents/DocumentsTable.jsx

@@ -363,7 +363,6 @@ const DocumentsTable = ({
         <div
           ref={scrollRef}
           className="documents-scroll"
-          tabIndex={0}
           onFocus={(event) => {
             if (event.target === scrollRef.current) {
               onDocumentListFocus?.();
@@ -504,7 +503,6 @@ const DocumentsTable = ({
                                   }
                                 }}
                                 role="button"
-                                tabIndex={0}
                                 draggable
                                 onDragStart={(event) => {
                                   event.stopPropagation();
@@ -741,7 +739,6 @@ const DocumentsTable = ({
                                       }
                                     }}
                                     role="button"
-                                    tabIndex={0}
                                     draggable
                                     onDragStart={(event) => {
                                       event.stopPropagation();

frontend/src/sidebar/Sidebar.jsx

@@ -275,7 +275,6 @@ const Sidebar = ({
                   <span
                     className={className}
                     role="button"
-                    tabIndex={0}
                     onClick={handleSelect}
                     onKeyDown={(event) => {
                       if (event.key === 'Enter' || event.key === ' ') {