Fix case in folder name

[rlopzc]

The library doesn't work if you use linux because of the folder name.

Mac ignores the case, that's why it "works" on OSX.

The best would be to fix all of the errors that flutter tells you: https://pub.dev/packages/growthbook_sdk_flutter/score

That's how I recognized the casing on the folder name :)

[DK070202]

The library doesn't work if you use Linux because of the folder name.

Mac ignores the case, that's why it "works" on OSX.

The best would be to fix all of the errors that flutter tells you: https://pub.dev/packages/growthbook_sdk_flutter/score

That's how I recognized the casing on the folder name :)

Hey, @romariolopezc thanks for your contribution 🙌🏻. It looks good to me.