Add GitHub sponsor link

Author: kishikawakatsumi

Public/index.html

@@ -249,6 +249,11 @@ <h1 class="h5 my-2">
               rel="nofollow noopener noreferrer">
               <span class="far fa-at"></span><span class="m-2">Creator</span></a>
           </span>
+          <span class="m-2">
+            <a class="text-reset text-decoration-none" href="https://github.com/sponsors/kishikawakatsumi"
+              target="_blank" rel="nofollow noopener noreferrer">
+              <span class="far fa-heart"></span><span class="m-2">Donate</span></a>
+          </span>
         </div>
     </footer>
   </div>

Public/js/misc/icons.js

@@ -11,6 +11,7 @@ import {
   faAt,
   faCheck,
   faCommentAltSmile,
+  faHeart,
 } from "@fortawesome/pro-regular-svg-icons";
 import { faMonitorHeartRate } from "@fortawesome/pro-light-svg-icons";
 import { faSpinnerThird } from "@fortawesome/pro-duotone-svg-icons";
@@ -26,6 +27,7 @@ library.add(
   faAt,
   faCheck,
   faCommentAltSmile,
+  faHeart,
 
   faMonitorHeartRate,