(fix) double slash in path

[watzon]

What does this PR do?

Provides a fix for https://github.com/appwrite/appwrite/issues/9042 causing project related CLI operations to not work (specifically on macOS and Windows for some reason)

Test Plan

I build and tested with an existing project. Where before I was getting the error "Project with the requested ID could not be found. Please check the value of the X-Appwrite-Project header to ensure the correct project ID is being used." I now do not.

Related PRs and Issues

https://github.com/appwrite/appwrite/issues/9042

Have you read the Contributing Guidelines on issues?

Yes