chore: 添加初始项目文件和依赖项

初始化项目，添加 favicon.ico、screenshot.png 等静态资源文件，以及 Vue、TailwindCSS 等依赖项。配置了 Vite 和 PostCSS，并生成了基本的项目结构。

node_modules/eastasianwidth/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "eastasianwidth",
+  "version": "0.2.0",
+  "description": "Get East Asian Width from a character.",
+  "main": "eastasianwidth.js",
+  "files": [
+    "eastasianwidth.js"
+  ],
+  "scripts": {
+    "test": "mocha"
+  },
+  "repository": "git://github.com/komagata/eastasianwidth.git",
+  "author": "Masaki Komagata",
+  "license": "MIT",
+  "devDependencies": {
+    "mocha": "~1.9.0"
+  }
+}