refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Medium-24px/SVG/Access/Access-Authorized-MD.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="24px" height="24px" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>🧩 Icons/Simple/Access/24px/Access-Authorized-MD</title>
+    <g id="🧩-Icons/Simple/Access/24px/Access-Authorized-MD" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M15,10 L15,7 C15,5.40231912 13.75108,4.09633912 12.1762728,4.00509269 L12,4 C10.4023191,4 9.09633912,5.24891996 9.00509269,6.82372721 L9,7 L9,8 L7,8 L7,7 C7,4.23857625 9.23857625,2 12,2 C14.7614237,2 17,4.23857625 17,7 L17,10 L18,10 C19.1045695,10 20,10.8954305 20,12 L20,20 C20,21.1045695 19.1045695,22 18,22 L6,22 C4.8954305,22 4,21.1045695 4,20 L4,12 C4,10.8954305 4.8954305,10 6,10 L15,10 Z M17.5,12 L6.5,12 C6.22385763,12 6,12.2238576 6,12.5 L6,19.5 C6,19.7761424 6.22385763,20 6.5,20 L17.5,20 C17.7761424,20 18,19.7761424 18,19.5 L18,12.5 C18,12.2238576 17.7761424,12 17.5,12 Z" id="Primary" fill="#000000"></path>
+    </g>
+</svg>