Use currentcolor instead of a css variable

Author: loonkwil

src/components/icons/Book.jsx

@@ -7,7 +7,7 @@ export default () => (
     xmlns="http://www.w3.org/2000/svg"
   >
     <g
-      style={{"stroke":"var(--text-main)"}}
+      stroke="currentcolor"
       stroke-width="1.5"
       stroke-linecap="round"
       stroke-linejoin="round"

src/components/icons/LeftArrow.jsx

@@ -8,7 +8,7 @@ export default () => (
   >
     <path
       d="M15 19.92L8.47997 13.4C7.70997 12.63 7.70997 11.37 8.47997 10.6L15 4.07999"
-      style={{"stroke":"var(--text-main)"}}
+      stroke="currentcolor"
       stroke-width="1.5"
       stroke-miterlimit="10"
       stroke-linecap="round"