{
  // Editor Customization
  "files.autoSave": "onFocusChange",
  "editor.fontSize": 16,
  "editor.fontFamily": "Fira Code, Menlo, Monaco, 'Courier New', monospace",
  "editor.formatOnSave": true,
  "editor.mouseWheelZoom": true,
  "workbench.colorTheme": "Material Theme High Contrast",
  "workbench.iconTheme": "material-icon-theme",
  "workbench.productIconTheme": "feather-vscode",
  // Vim Integration
  "vim.easymotion": true,
  "vim.incsearch": true,
  "vim.useSystemClipboard": true,
  "vim.useCtrlKeys": true,
  "vim.hlsearch": true,
  "vim.insertModeKeyBindings": [
    {
      "before": [
        "j",
        "j"
      ],
      "after": [
        "<Esc>"
      ]
    }
  ],
  "vim.normalModeKeyBindingsNonRecursive": [
    {
      "before": [
        "<leader>",
        "d"
      ],
      "after": [
        "d",
        "d"
      ]
    },
    {
      "before": [
        "<C-n>"
      ],
      "commands": [
        ":nohl"
      ]
    },
    {
      "before": [
        "K"
      ],
      "commands": [
        "lineBreakInsert"
      ],
      "silent": true
    }
  ],
  "vim.leader": "<space>",
  "vim.handleKeys": {
    "<C-a>": false,
    "<C-f>": false
  },
  // GitHub Copilot Integration
  "github.copilot.enable": {
    "*": true,
    "plaintext": true,
    "markdown": true,
    "scminput": true,
    "javascript": true,
    "typescript": true,
    "javascriptreact": true,
    "typescriptreact": true,
    "json": true,
    "jsonc": true,
    "html": true,
    "css": true,
    "scss": true,
    "java": true,
    "python": true,
    "apex": true,
    "C++": true,
    "C": true
  },
  "github.copilot.editor.enableAutoCompletions": true,
  "github.copilot.advanced": {
    "enable": true,
    "enableAutoCompletions": true,
    "enableAutoImports": true,
    "enableAutoSuggestions": true,
    "enableCodeActions": true,
    "enableCodeNavigation": true,
    "enableCodeTransforms": true,
    "enableComments": true,
    "enableFormatting": true,
    "enableLanguageFeatures": true,
    "enableSemanticHighlighting": true,
    "enableSignatureHelp": true,
    "enableSmartSelection": true,
    "enableSyntaxHighlighting": true,
    "enableTypeDefinitions": true,
    "enableTypeHints": true,
    "enableTypeValidation": true,
    "enableWorkspaceSymbols": true
  },
  "github.copilot.chat.scopeSelection": true,
    "github.copilot.chat.experimental.codeGeneration.instructions": {
      "file": "rules.md"
    },
  // Performance Optimization
  "search.exclude": {
    "**/node_modules": true,
    "**/bower_components": true,
    "**/.sfdx": true
  },
  "git.autofetch": true,
  "codeAnalyzer.analyzeOnOpen.enabled": true,
  // Advanced Features
  "salesforcedx-vscode-core.detectConflictsAtSync": true,
  "merge-conflict.autoNavigateNextConflict.enabled": true,
  "salesforcedx-vscode-apex.advanced.enable-completion-statistics": true,
  "salesforcedx-vscode-apex.enable-semantic-errors": true,
  "apexPMD.enableCache": true,
  "salesforcedx-vscode-core.retrieve-test-code-coverage": true,
  "salesforcedx-vscode-soql.experimental.validateQueries": true,
  "javascript.experimental.updateImportsOnPaste": true,
  "apexPMD.commandBufferSize": 10,
  "notebook.experimental.generate": true,
  "accessibility.voice.keywordActivation": "chatInContext",
  "apex.trace.server": "messages",
  "workbench.activityBar.location": "top",
  "[jsonc]": {
    "editor.defaultFormatter": "vscode.json-language-features"
  },
  "editor.cursorSmoothCaretAnimation": "on",
  "editor.minimap.autohide": true,
  "redhat.telemetry.enabled": true,
  "chat.experimental.detectParticipant.enabled": true,
  "github.experimental.multipleAccounts": true,
  "github.copilot.chat.experimental.generateTests.codeLens": true,
  "github.copilot.chat.experimental.inlineChatCompletionTrigger.enabled": true,
  "github.copilot.chat.experimental.startDebugging.enabled": true,
  "github.copilot.chat.experimental.temporalContext.enabled": true,
  "prettier.experimentalTernaries": true,
  "testing.coverageToolbarEnabled": true,
}

=============

Find the issue with the above json code and also optimise the code so that I can use it like an advanced VSCode user