feat: use user provided name for package.json and go.mod

[octref]

Description

• Use user provided name for package.json and go.mod
• Remove package-lock.json from the template, as it'll be recreated during npm install for new projects

Checklist

• Code compiles correctly and linting passes locally
• For all code changes, an entry added to the CHANGELOG.md file describing and linking to this PR
• Tests added for new functionality, or regression tests for bug fixes added as applicable
• For public APIs, new features, etc., PR on docs repo staged and linked here

[mattjohnsonpint]

As discussed, let's just use go mod edit -module <name> in the cli. We're already doing the equivalent for NPM. Thanks.