Installer can be used for updates

[woodseowl]

Closes #63.

Allows the Starter Kit to be used as a library in an existing site, giving the option to not install all of the project and resource files and allowing for upgrading components after they are installed.

A significant portion of this update is just porting to Laravel\Prompts. There is test coverage for all of that, which has also been updated and is passing.

This PR does the following

• Refactors starterkit:install command to utilize Laravel\Prompts
• Updates README.md to better explain how to use installation options
• Updates /project files to match Laravel 11 defaults (without making incompatible with L10)

To Review

• composer require the starter kit from this branch into an existing Laravel 10 or 11 project
  composer require cornell-custom-dev/laravel-starter-kit:dev-updates
• Install the starter kit and select the "View components" and "Example blade files" options (this will only add files to the local /resources/views directory)
  php artisan starterkit:install
• Confirm that the contents of /vendor/cornell-custom-dev/laravel-starter-kit/resources/views has been copied to the local /resources/views directory (other than the "form" example and components, which are skipped for now).
• Confirm that the name you gave the project shows up in the "title" attribute in /resources/views/examples/cd-index.blade.php

[richmarisa]

All seems fine; tested in Laravel Herd.

[inaydich]

Thanks for keeping a good documentation. I have not tested it, but I did look through the code.