Rewording and fixes in documentation (#16540)
Various rewording and fixes found while translating or checking the translation and the structure of the document.
Description of user facing changes
Change log fixes and rewording.
Description of development approach
Fixing a list nesting issue in change log
Various rewording and fixes in the change log
Fixed a table format issue in user guide (but this issue had no consequence after html conversion anyway)
Fixed lines with tailing spaces in the User Guide and in change log (but there was no consequence in HTML)
Note:
Regarding tailing space fixing in the change log, I have done only the 2024.2 section because fixing them all would change too much lines for translators in old change log items.
In the user guide, I have fixed them all because there are only few of them and they have been added recently.
I can revert these fixes without any visible consequence if you prefer not to change the history. The idea for these fixes was to keep good practices.
