Further harmonize sequences of list-elements (lists / list-tables)

Currently, multiline paragraphs will keep their evaluated width to keep the layout "like it was"
This creates problems with 2-line paragraphs or sequences of list-items, where target-languages running longer and the layout is growing to the bottom only, especially if the original segment was only 1 or 2 words.

•  Sequences of list-items should orient the text-length on the longest detected list-item.
•  Orphan 2-line paragraphs also should be elongated to the max. possible width (adding a linebreak after the first line if neccessary)
•  these "upscaled" paragraphs shall only be widened, when actual translated text is applied
•  The Issue was partly implemented in Milestone II: Sequences of List-Items are already detected
• All non-Overlapping Elements are expanded to the overall list-width, single-line elements are expanded right away, multiline elements are expanded via the frontend when the text is changed/ segment is translated