website: update touch-icon.

Author: jaywcjlove

.refsrc.json

@@ -20,8 +20,9 @@
     { "name": "funding", "content": "https://jaywcjlove.github.io/#/sponsor" },
     { "rel": "apple-touch-icon", "href": "{{RELATIVE_PATH}}icons/touch-icon-iphone.png" },
     { "rel": "apple-touch-icon", "sizes": "152x152", "href": "{{RELATIVE_PATH}}icons/touch-icon-ipad.png" },
-    { "rel": "apple-touch-icon", "sizes": "180x180", "href": "{{RELATIVE_PATH}}icons/touch-icon-iphone-retina.png" },
-    { "rel": "apple-touch-icon", "sizes": "167x167", "href": "{{RELATIVE_PATH}}icons/touch-icon-ipad-retina.png" }
+    { "rel": "apple-touch-icon", "sizes": "180x180", "href": "{{RELATIVE_PATH}}icons/touch-icon-iphone.png" },
+    { "rel": "apple-touch-icon", "sizes": "167x167", "href": "{{RELATIVE_PATH}}icons/touch-icon-ipad-retina.png" },
+    { "rel": "apple-touch-icon", "sizes": "120x120", "href": "{{RELATIVE_PATH}}icons/touch-icon-iphone-retina.png" }
   ],
   "giscus": {
     "src": "https://giscus.app/client.js",