Add option to strip newlines

Problem/Motivation

Newlines still appear in the views output, this breaks the csv.

Steps to reproduce

For example when exporting a rich text field (e.g. body) with HTML markup as a CSV format.
Note, also tested with a variation of twig template: myfield|striptags|nl2br|striptags|trim|replace({'\n':''} but newlines still appear.

Proposed resolution

Add an option to strip newlines in the CSV format.

Remaining tasks

User interface changes

API changes

Data model changes