CLI crashes if git username and email isn't specified

[akd-io]

I believe the CLI crashes if the user hasn't set their username and email in the git config, when the cli tries to create the initial commit.

I think create-next-app handles this case without problems, just ignoring git.
We should probably check for user.name and email before amending create-next-app with our initial commit.

Get username with git config --global user.name
Get email with git config --global user.email
Set username with git config --global user.name "example user name"
Set email with git config --global user.email "[email protected]"

[akd-io]

I think create-next-app handles this case without problems, just ignoring git.

Doesn't seem to be the case according to this line in test.ts:

// If not done already, Set Git name and email so `git commit` doesn't fail during create-next-app
await setGitNameAndEmail()

Research and fix any problems that arise