* v6 Update :RP Get Started Series MacOS
* Updated models for v6 and mac screenshots
* Changed screenshot name
* Added MacOS updates and other fixes for model, search and sql.md
* Added cli version placeholder for migration of dataannotations
* Corrected a commentted out note
* Added macOS screenshots for model.md and a new project screenshot.
* Updated MacOS migrations command for data annotations in validation
* corrected VS Code & Mac migration instructgion for DA.