vite: generate files under a directory in jekyll-cache

so that irrelevant cache files will not be included

_plugins/jekyll-vite.rb

@@ -39,7 +39,7 @@ class Jekyll::Vite::Generator < Jekyll::Generator
     cache_dir = site.config['cache_dir'] || '.jekyll-cache'
     vr = ViteRuby.new(
       mode: Jekyll.env,
-      public_dir: cache_dir,
+      public_dir: File.join(cache_dir, 'vite-dist'),
       build_cache_dir: File.join(cache_dir, 'vite-build'),
       **(site.config['vite'].transform_keys(&:to_sym) || {})
     )

_src/vite.json

@@ -6,13 +6,12 @@
       "_includes/**/*",
       "_layouts/**/*",
       "_config.yml",
-      "vite.config.mjs"
+      "_vite.config.mjs"
     ],
     "publicOutputDir": "",
     "assetsDir": "assets"
   },
   "development": {
-    "autoBuild": true,
-    "publicOutputDir": "vite-dev"
+    "autoBuild": true
   }
 }