message: bumped focus tracker to correct version
diff: {
  "name": "@fluid-example/focus-tracker",
  - "version": "0.42.0",
  + "version": "0.43.0",
  "description": "Example Data Object that tracks page focus for Audience members using signals.",
  "homepage": "https://fluidframework.com",
  "repository": "https://github.com/microsoft/FluidFramework",
  