Harmonize whitespaces

[LVerneyPEReN]

OpenTermsArchive/contrib-versions@3af7bf439 results in a notification when the only modifications happening are changes between non-breakable spaces and regular ones.

[MattiSG]

In the given example, there would have been a notification in any case, since the last line changed.

Let's see if there are other cases where space style results in noise :)

[MattiSG]

Closing as there has not been other instances of such noise for the moment. Feel free to reopen if it is spotted again! In any case, thanks for referencing this problem here, it allows to track the evolution of specific noise types 🙂

[clementbiron]

Spotted again here.