fix(config): load file with native pathToFileURL()

[caiodomingues]

getConfig() was failing to load languine.config.mjs:

Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only URLs with a scheme in: 
file, data, and node are supported by the default ESM loader. 
On Windows, absolute paths must be valid file:// URLs. Received protocol 'e:'

Changed the import() to use the native pathToFileURL() before loading the file to prevent the error. It's cross-platform and also normalizes Windows drive letters/relative paths.

Tests:

• ✅ Windows from drive-based path (E:\)
• ✅ Linux
• ✅ MacOS

[vercel]

@caiodomingues is attempting to deploy a commit to the Pontus Abrahamsson's projects Team on Vercel.

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