Translate percentage values for different locales

[multiprogramm]

Fix percent formatting style for different languages for all % values (excluding web-ui).

See also #19201, @bitigchi described this problem there.

[bitigchi]

This is most appreciated. Thank you very much!

[glassez]

I will not focus on the details of the implementation yet, but will focus on general issues.

The first and most important thing I don't like is delegating the solution of this problem to translators. Having delved into this topic a little, I did not find enough convincing prerequisites to prefer such a generic (but less reliable) solution.
All we need is to select the correct position of the percent sign depending on the selected locale. IIRC, there are not many languages in which it is placed before a number. I doubt there is any other language supported by qBittorrent besides Turkish that uses prefix notation. In any case, it would not be so difficult to find out, or just wait for user feedback, as was the case with Turkish.
@qbittorrent/bug-handlers, what do you think?

[glassez]

I also created QTBUG-117635.

[xavier2k6]

I think Qt should handle something like this as well as possibly the upper/lower case issue from #8785

[glassez]

I also created QTBUG-117635.

Note, it doesn't mean that I want to wait for it to be solved by Qt.

[bitigchi]

On Qt side there are already several bug reports about this (one of them being mine), thanks for raising the issue once more.

Regarding delegating this issue to translators, the translators of the languages with different notations is generally aware of the issue, and until this is fixed on the Qt side, it's better than leaving it unfixed I guess.

[glassez]

it's better than leaving it unfixed I guess.

As I said above:

I also created QTBUG-117635.

Note, it doesn't mean that I want to wait for it to be solved by Qt.

I just dislike the suggested workaround with delegating it to translators.

[multiprogramm]

If they do this in QT, it'll be much better! And I agree that translation and localization are different things.
If we don't want to wait QT solution and don't want to delegate it to translators, is there anything I can do in this PR? Can I hardcode using the current list of languages? Or maybe there is a better solution?

(By the way, it's not just about the position of the percentage, but also separating it with a space or not)

[xavier2k6]

@glassez Would Qt::LayoutDirectionAuto be of any benefit?

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This PR is stale because it has been 60 days with no activity. This PR will be automatically closed within 7 days if there is no further activity.

[github-actions]

This PR was closed because it has been stalled for some time with no activity.