Add spherical viewer

Author: Tom-Notch

astro.config.ts

@@ -15,6 +15,12 @@ import astroExpressiveCode from "astro-expressive-code";
 export default defineConfig({
   vite: {
     plugins: [tailwindcss()],
+    server: {
+      watch: {
+        usePolling: true,
+        interval: 1000,
+      },
+    },
   },
   markdown: {
     remarkPlugins: [remarkMath],