Batch audit file prep tool: Handle extra spaces in Dominion CVR contest headers

[arsalansufi]

Overview

We've been seeing some Dominion files from Georgia with an extra space between contest names and the number of votes allowed in contest headers, e.g., Contest 1 (Vote For=1) as opposed to Contest 1 (Vote For=1).

This is not true for all files across the state and likely has to do with different people managing programming for different jurisdictions, so we can't just add an extra space to the contest name in the Arlo audit config.

While we're advising jurisdictions on how to correct, this may be widespread enough that it's worth us just handling this automatically. That's what this PR does - it trims the extra spaces down to a single space.

Testing

• Added an automated test