refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Medium-24px/SVG/Action/Currency/Currency-Euro-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/Currency/Currency-Euro-MD</title>
+    <g id="🧩-Icons/Simple/Action/24px/Currency/Currency-Euro-MD" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M13.713141,22 C16.9102564,22 18.9014423,20.3977901 20.5,18.1049724 L18.0320513,16.3093923 C16.7419872,17.9944751 15.6201923,18.961326 13.7411859,18.961326 C11.5536859,18.961326 9.95512821,17.6353591 9.16987179,15.4530387 L15.2275641,15.4530387 L15.2275641,13.0773481 L8.63701923,13.0773481 C8.60897436,12.718232 8.60897436,12.359116 8.60897436,11.9723757 C8.60897436,11.558011 8.60897436,11.1436464 8.6650641,10.7569061 L15.2275641,10.7569061 L15.2275641,8.40883978 L9.19791667,8.40883978 C9.98317308,6.33701657 11.525641,5.03867403 13.5168269,5.03867403 C15.4799679,5.03867403 16.6298077,5.92265193 17.8357372,7.55248619 L20.4439103,5.64640884 C18.9575321,3.54696133 17.0224359,2 13.6009615,2 C9.61858974,2 6.75801282,4.67955801 5.63621795,8.40883978 L3,8.40883978 L3,10.7569061 L5.1875,10.7569061 C5.13141026,11.1712707 5.13141026,11.6132597 5.13141026,12.0276243 C5.13141026,12.3867403 5.13141026,12.7458564 5.15945513,13.0773481 L3,13.0773481 L3,15.4530387 L5.55208333,15.4530387 C6.64583333,19.3756906 9.5625,22 13.713141,22 Z" id="Primary" fill="#000000"></path>
+    </g>
+</svg>