Add a way to change the generated name that is used "everywhere"

When you carete an Azure static web app it will create a random name that is used for multiple things:

- your url (can be changed by custom domain)
- staging urls (can't be changed by custom domain)
- github secret
- github action

It would be great that we could have influence on the name of this (or change it).

Especially the github things that are generated are just annoying. For example when you have a mono repo you could have multiple web apps all having action files that look similar except for the generated name. would be a lot better to name these things yourself (optional)

In your repo having a list of these files makes you need to remember which yml belongs to which web app.
`azure-static-web-apps-something-something-numbers.yml`

Having the possibility to add a link to the yml file would be great if you for some reason already have the yml file and want to recreate the website.