Misc transcript fixes & nowhitespace removals

Based on !1006 (merged) to prevent conflicts. EO EP38 was avoided.

Just like promised in !1004 (merged)

Next stop: making all unneeded and unwanted nowhitespace go away. They can have their space in /dev/null ... 😎 🥁

I added some temporal rules to the regeneration script to remove |nowhitespace if there is no space in the field. I went through the comic episode by episode, checking that changes didn't break anything (and fixing exceptions manually). Along the way, I found some broken orders in the transcripts (e.g. regular text got nowhitespace instead of a sound effect) and fixed those as well. See commits. (Some episodes had to be skipped due to other MR's)