vs code: Remove some old settings
vs code: Remove some old settings

- editor.inlineHints.fontFamily got merged to editor.fontFamily:
  https://github.com/microsoft/vscode/issues/119406

- testExplorer.errorDecoration isn't needed anymore with native testing
  integration

- git.experimental.mergeEditor is now enabled by default

The-Compiler/dotfiles,The-Compiler/dotfiles,The-Compiler/dotfiles