Provide a way to upload client_secrets.json for the Google Analytics extractor through Meltano's UI
According to our Google Analytics extractor tutorial, the
client_secrets.json file is required in order to authenticate to the Google APIs. Rather than requiring the user to manage this file from the command line or their file system, can we provide a way for them to upload it directly through the Meltano UI?
Benefit to MAUI: Google Analytic is one of the data sources we can expect the majority of our target persona to have access to, and it is full of interesting data. The proposed change makes it much easier for a user who is not comfortable with the command line to add the necessary file so they can continue in the Google Analytics extractor setup.
Bonus: If we make this setup flow easier, we could consider making Google Analytic the default quickstart path for new users.