Automatically Rename all instances of "Viget Craft Starter"

[joshuapease]

There are a few files where the "site starter" name is present and should be renamed to match the name of the site being created.

• DDEV config (so domain is correct).
• composer.json (We can just remove a name, since it's not required)
• package.json (Name is required, so let's match what we set in ddev)

Potential Areas:

• If we end up deciding to include Craft's project config yaml files, we'll need to change the default site name.
• Readme (this is low priority, but it would be cool if our Readme had a few best practices pre-filled with names).