fix: remove line breaks that appear to be in middle of sentences

[bodnarbm]

Summary

In the source data, there are description records that seem to be copy and paste entries from a PDF or other program that created line breaks in the middle of sentences (likely the end of the line when displayed in the original program). Examples are for trainings 1663 and 9381.

This change removes line breaks if they are the only thing between two alphabetical characters. While there are some false matches, the overall result does look better.

Addresses NJWE-29.

Test plan

Start locally and then compare

1. http://localhost:3000/training/9381 to https://training.njcareers.org/training/9381; and
2. http://localhost:3000/training/1663 to https://training.njcareers.org/training/1663

Before

After

[namanaman]

nIce!

[derekkinsman]

Looks good to me.

My only other thought would be to swap any newline for a space unless it is a newline directly following a punctuation (.\n and :\n would suggest the end of a paragraph). But depending on quality of data entry you might have to account for "punctuation space newline" as well. And I'm not convinced that would improve the false positive rate. But, overall does the job.

[bodnarbm]

@derekkinsman I'll take a quick look at what the set of characters immediately before the \n look like to see if there is something more we can do. It won't help with the false positives from the current iteration, as they will continue to match regardless, but might help with any false negatives. I'll look quickly today, and will merge this as is later if it looks a negative matcher at the start won't help much. (we would differently need to continue to account for any repeated \n\n+ matches continue to be line breaks).

[bodnarbm]

Tried a few other options, but anything more than the regex ([A-Za-z])\n([A-Za-z]) was creating too many false positives and removing new lines that should be there. Absent a ML model trained to remove the new lines, I think this regex is probably the best balance between removing unnecessary new lines and keeping those that should be there.