kedro viz --load-file looks for project configurations.

[rashidakanchwala]

Description

kedro-viz --load-file looks for project configurations. Ideally it should be able to run directly using the json regardless if the Kedro project exists or not.

Raised by @noklam

Steps to Reproduce

1. run kedro viz --save-file=file from demo-project directory
2. run kedro viz --load-file=file from demo-project directory
3. now go to parent directory and run `kedro viz --load-file = demo-project/file' and it will give you below error

Expected Result

It shouldn't throw that bug.

Actual Result

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Your Environment

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• Python version used (if relevant):

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