npx snapwp fails if directory has existing .env file

[justlevine]

Description

As reported by @ayushnirwal , if a user runs npx snapwp on a folder that has an existing .env file, the build will fail.

Link to the code that reproduces this issue

n/a

To Reproduce

1. Create a directory and an `.env file
2. Run npx snapwp
3. Provide the directory created in step 1.

Additional context

No response

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