v1.0.0: Add version display in footer

vite.config.ts

@@ -1,7 +1,13 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
+import { readFileSync } from 'fs'
+
+const pkg = JSON.parse(readFileSync('./package.json', 'utf-8'))
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
+  define: {
+    __APP_VERSION__: JSON.stringify(pkg.version),
+  },
 })