refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Small-16px/SVG/Action/Social-SM.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="16px" height="16px" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>🧩 Icons/Simple/Action/16px/Social-SM</title>
+    <g id="🧩-Icons/Simple/Action/16px/Social-SM" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M12,0 C13.6568542,0 15,1.34314575 15,3 C15,4.65685425 13.6568542,6 12,6 C11.3853745,6 10.8139186,5.8151686 10.3381832,5.49805654 L6.86355639,8.10286122 C6.95221622,8.38614182 7,8.68749066 7,9 C7,9.12561364 6.99227981,9.24942413 6.97728802,9.37098287 L9.91780823,10.8402555 C10.4573316,10.319987 11.1912973,10 12,10 C13.6568542,10 15,11.3431458 15,13 C15,14.6568542 13.6568542,16 12,16 C10.3431458,16 9,14.6568542 9,13 C9,12.8743864 9.00772019,12.7505759 9.02271198,12.6290171 L6.08219177,11.1597445 C5.54266838,11.680013 4.80870267,12 4,12 C2.34314575,12 1,10.6568542 1,9 C1,7.34314575 2.34314575,6 4,6 C4.61505747,6 5.18688456,6.18509127 5.66281966,6.5026122 L9.13675855,3.89814443 C9.04789695,3.61457141 9,3.31287917 9,3 C9,1.34314575 10.3431458,0 12,0 Z M12,12 C11.4477153,12 11,12.4477153 11,13 C11,13.5522847 11.4477153,14 12,14 C12.5522847,14 13,13.5522847 13,13 C13,12.4477153 12.5522847,12 12,12 Z M4,8 C3.44771525,8 3,8.44771525 3,9 C3,9.55228475 3.44771525,10 4,10 C4.55228475,10 5,9.55228475 5,9 C5,8.44771525 4.55228475,8 4,8 Z M12,2 C11.4477153,2 11,2.44771525 11,3 C11,3.55228475 11.4477153,4 12,4 C12.5522847,4 13,3.55228475 13,3 C13,2.44771525 12.5522847,2 12,2 Z" id="Primary" fill="#000000"></path>
+    </g>
+</svg>