💄 fix eslint error

.eslintrc.js

@@ -16,7 +16,7 @@ const eslintrc = {
   },
   settings: {
     react: {
-      version: '16.8',
+      version: '16.9',
     },
   },
   parser: '@typescript-eslint/parser',

site/theme/template/IconDisplay/IconPicSearcher.tsx

@@ -72,7 +72,7 @@ class PicSearcher extends Component<PicSearcherProps, PicSearcherState> {
       const img = new Image();
       img.setAttribute('crossOrigin', 'anonymous');
       img.src = url;
-      img.onload = function() {
+      img.onload = function onload() {
         const scale = Math.min(1, 300 / Math.max(img.width, img.height));
         const canvas = document.createElement('canvas');
         canvas.width = img.width * scale;