Fix icon rendering on systems without icon fonts

Replace star character

main/css/common.css

@@ -3,6 +3,11 @@
     src: url("../fonts/Wenceslas.ttf");
 }
 
+@font-face {
+    font-family: "Noto Sans Symbols";
+    src: url("../fonts/NotoSymbolsSmall.woff2") format('woff2');
+}
+
 html {
     background-color: #21192c;
     scrollbar-color: #1a1423 #21192c;
@@ -28,7 +33,8 @@ a:hover {
 }
 
 a::before {
-    content: '⛤';
+    content: '⛥';
+    font-family: "Noto Sans Symbols";
     display: inline-block;
     margin-right: 0.5em;
 }