refactor: use de gruyter ci

frontend/static/degruyter-icons/Simple/Small-16px/SVG/Action/Currency/Currency-Euro-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/Currency/Currency-Euro-SM</title>
+    <g id="🧩-Icons/Simple/Action/16px/Currency/Currency-Euro-SM" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M9.34615385,15 C11.5384615,15 12.9038462,13.878453 14,12.2734807 L12.3076923,11.0165746 C11.4230769,12.1961326 10.6538462,12.8729282 9.36538462,12.8729282 C7.86538462,12.8729282 6.76923077,11.9447514 6.23076923,10.4171271 L10.3846154,10.4171271 L10.3846154,8.75414365 L5.86538462,8.75414365 C5.84615385,8.50276243 5.84615385,8.25138122 5.84615385,7.98066298 C5.84615385,7.69060773 5.84615385,7.40055249 5.88461538,7.12983425 L10.3846154,7.12983425 L10.3846154,5.48618785 L6.25,5.48618785 C6.78846154,4.0359116 7.84615385,3.12707182 9.21153846,3.12707182 C10.5576923,3.12707182 11.3461538,3.74585635 12.1730769,4.88674033 L13.9615385,3.55248619 C12.9423077,2.08287293 11.6153846,1 9.26923077,1 C6.53846154,1 4.57692308,2.87569061 3.80769231,5.48618785 L2,5.48618785 L2,7.12983425 L3.5,7.12983425 C3.46153846,7.4198895 3.46153846,7.72928177 3.46153846,8.01933702 C3.46153846,8.27071823 3.46153846,8.52209945 3.48076923,8.75414365 L2,8.75414365 L2,10.4171271 L3.75,10.4171271 C4.5,13.1629834 6.5,15 9.34615385,15 Z" id="Primary" fill="#000000"></path>
+    </g>
+</svg>