Limit text width in the editor window (non-fullscreen mode)

[Jürgen Spitzmüller]

Am Donnerstag, dem 27.10.2022 um 18:12 +0200 schrieb Jean-Marc
Lasgouttes:
> Note that the unit selector is usually after the value.

I fixed this and also removed the redundant "Screen used" label.

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Jürgen