feat: 新增工具：二维码生成、色板、单位转换

package.json

@@ -17,12 +17,13 @@
     "@codemirror/language": "^6.9.2",
     "@codemirror/lint": "^6.4.2",
     "@codemirror/search": "^6.5.4",
-    "@codemirror/state": "^6.3.1",
+    "@codemirror/state": "^6.3.3",
     "@codemirror/theme-one-dark": "^6.1.2",
     "@codemirror/view": "^6.22.0",
     "@element-plus/icons-vue": "^2.1.0",
     "axios": "^1.6.2",
     "element-plus": "^2.4.2",
+    "qrcode-vue3": "^1.6.8",
     "sass": "^1.69.5",
     "sass-loader": "^13.3.2",
     "ts-md5": "^1.3.1",