Paragraphs (stable) title from form options not being applied.

Here is a patch.

Made some further improvements so that renaming the field is not needed at all.

I've tested both patches and they both work. Nice job(s), thanks!
Personally, I'm going with #2 at this time. I'm not seeing the advantage of #3, and that version seems to do a little too much. @Meleagyr, perhaps you could explain the use case for #3? Maybe I'm just missing something.

Update:
Actually, there is an issue when a field can take multiple paragraph types. Instead of displaying each paragraph type in the drop button, the displays the Title text for all, so there's no way to distinguish among them. See attached images.