vscode flutter 配置

### install the plugins( Material Icon Theme | Flutter | Awesome Flutter Snippets | Flutter Widget Snippets | Flutter GetX Generator | Svg Preview | Path Intellisense)

### ctrl + shift + p   select open user settings(json), append the json config
{
    "files.autoSave": "onFocusChange",
    "editor.formatOnType": true, 
    "editor.formatOnSave": true,
    "editor.codeActionsOnSave": {
        "source.fixAll": true // 自动修复 all
    },
    "explorer.fileNesting.enabled": true,
    "explorer.fileNesting.patterns": {
      "pubspec.yaml": ".packages, pubspec.lock, .flutter-plugins, .flutter-plugins-dependencies, .metadata, analysis_options.yaml, dartdoc_options.yaml"
    },
    "workbench.iconTheme": "material-icon-theme",
}