fix(pwa): installation failure caused by outdated cache entries

Change `/assets/css/style.css` to `/assets/css/jekyll-theme-chirpy.css`

Author: cotes2020

assets/js/data/swcache.js

@@ -5,7 +5,7 @@ layout: compress
 
 const resource = [
   /* --- CSS --- */
-  '{{ "/assets/css/style.css" | relative_url }}',
+  '{{ "/assets/css/:THEME.css" | replace: ':THEME', site.theme | relative_url }}',
 
   /* --- PWA --- */
   '{{ "/app.js" | relative_url }}',