settings.json

{
    "editor.codeActionsOnSave": {
        "source.fixAll": true,
        "source.organizeImports": true
    },
    "editor.codeActionsOnSaveTimeout": 750,
    "dart.completionCacheSize": 512,
    "dart.analysisExcludedFolders": [
        "build",
        ".dart_tool",
        ".pub-cache",
        "generated",
        "*.g.dart"
    ],
    "dart.enableCompletionCaching": true,
    "dart.enableSdkFormatter": false,
    "dart.lineLength": 120,
    "dart.showTodos": false,
    "dart.previewLsp": true,
    "editor.quickSuggestions": {
        "other": "on",
        "comments": "off",
        "strings": "off"
    },
    "editor.suggestOnTriggerCharacters": true,
    "editor.acceptSuggestionOnEnter": "on",
    "editor.snippetSuggestions": "top",
    "editor.suggest.localityBonus": true,
    "editor.suggest.shareSuggestSelections": true,
    "editor.suggestSelection": "recentlyUsed"
}