fix: add base GitHub Pages URL in vite config

Author: oxcabe

vite.config.ts

@@ -4,4 +4,5 @@ import react from '@vitejs/plugin-react'
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [react()],
+  base: "https://simde-ull.github.io/SIMDE/"
 })