Change PATH configuration line on 'macOS install' page

[IvoSorokins]

Page URL

https://docs.flutter.dev/get-started/install/macos/

Page source

https://github.com/flutter/website/tree/main/src/get-started/install/macos.md

Describe the problem

The use of pwd in the PATH configuration line (export PATH="$PATH:pwd/flutter/bin") is incorrect and unnecessary. The correct way to add a directory to the PATH is to specify the absolute path to that directory directly. The pwd command, which stands for "print working directory," is used to display the current directory, but it's not needed in the PATH configuration.

Expected fix

Rename to: export PATH="$PATH:[PATH_OF_FLUTTER_GIT_DIRECTORY]/bin" as it is under "Update your path" also step 3, using which did not bring any confusion

Additional context

Step: "3. Add the flutter tool to your path:" is under section Get the Flutter SDK