refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Large-32px/SVG/Action/Social/Social-Youtube-LG.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="32px" height="32px" viewBox="0 0 32 32" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>🧩 Icons/Simple/Action/32px/Social/Social-Youtube-LG</title>
+    <g id="🧩-Icons/Simple/Action/32px/Social/Social-Youtube-LG" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M16.134105,6.00006779 C16.1582356,6.00013657 16.1851646,6.00022254 16.2147831,6.00033 L16.5510249,6.00199352 C18.521128,6.01409809 25.0653912,6.09277777 26.9039563,6.60419573 C28.1117651,6.93753666 29.0552536,7.89982451 29.3820824,9.13169934 C30.3068903,12.9284493 30.0931968,18.9248601 29.4000398,22.868132 C29.0732111,24.1000069 28.1297226,25.0622947 26.9219137,25.3956356 C24.9579919,25.941923 17.6248102,25.9944506 16.2327405,25.9995014 L15.7748456,25.9995014 C15.09362,25.9970297 12.9896474,25.9831886 10.7883882,25.9056781 L10.2128114,25.8839793 C8.10066203,25.798869 6.00495495,25.6513446 5.08567239,25.3956356 C3.87786358,25.0622947 2.93437507,24.1000069 2.60754632,22.868132 C1.67735117,19.0878658 1.93234675,13.087792 2.58958888,9.15001459 C2.91641764,7.91813976 3.85990615,6.9558519 5.06771496,6.62251097 C5.90342637,6.39004826 7.71138946,6.24428494 9.62009237,6.15291713 L10.1948539,6.12710635 L10.1948539,6.12710635 L10.7704308,6.10436548 C12.7802761,6.02991864 14.7090187,6.00831987 15.5477746,6.00217341 L15.8375662,6.00037624 C15.8616968,6.00025745 15.8830289,6.00016158 15.9014536,6.0000846 Z M13,11.5 L13,20.5 L21,16 L13,11.5 Z" id="Primary" fill="#000000"></path>
+    </g>
+</svg>