refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Medium-24px/SVG/Action/Social/Social-Twitter-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/Action/24px/Social/Social-Twitter-MD</title>
+    <g id="🧩-Icons/Simple/Action/24px/Social/Social-Twitter-MD" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M22,18.4652472 C21.2642111,18.1260135 20.478687,17.8963081 19.6448904,17.7928647 C20.4994368,18.3262914 21.1387689,19.1641331 21.4441356,20.150767 C20.6398231,19.6529005 19.7589946,19.3029641 18.8403499,19.1163324 C15.5197917,22.5390939 10.8388286,18.9885493 11.8481613,15.2219906 C8.439835,15.3999742 5.41183699,17.0931001 3.39317165,19.6791865 C2.23170767,17.6255297 2.98797578,15.1002924 4.66288289,13.9897965 C3.98999444,14.0117021 3.35806442,14.2042895 2.80512565,14.5237472 C2.80454053,14.5057967 2.80454053,14.4879984 2.80454053,14.4702 C2.80454053,12.4013309 4.21906907,10.6823441 6.09584272,10.286825 C5.4565987,10.1225324 4.84514789,10.0966716 4.23808549,10.2138061 C4.76030543,8.52524376 6.27137884,7.29304965 8.07062403,7.24741283 C6.25675083,5.81441672 4.15031743,5.22418053 2,5.48278917 C11.2595301,-0.176176371 19.9924519,7.23220056 19.9631959,15.7054366 C19.9631047,15.8890625 19.9592518,16.0726656 19.9516398,16.2561209 C20.7532547,16.8585269 21.4436968,17.6100132 21.9995612,18.4619005" id="Primary" fill="#000000" transform="translate(12.000000, 12.000000) scale(1, -1) translate(-12.000000, -12.000000) "></path>
+    </g>
+</svg>