Update "Pause Updates" to Use ICU

[mrixner]

• I have read the contributing guidelines, and I agree with the Code of Conduct.
• Have you checked that there aren't other open pull requests for the same changes?
• Have you tested that the committed code can be executed without errors?
• This PR is not composed of garbage changes used to farm GitHub activity to enter potential Crypto AirDrops.
  Any user suspected of farming GitHub activity with crypto purposes will get banned. Submitting broken code wastes the contributors' time, who have to spend their free time reviewing, fixing, and testing code that does not even compile breaks other features, or does not introduce any useful changes. I appreciate your understanding.

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I tried to make the format string automatically handle the stuff, but it doesn't seem like it supports any plural matching aside from specific numbers. Feel free to revert / change anything you prefer the other / a different version of, as always.

[marticliment]

I have looked at this, and, to be honest, I reckon it will be more confusing (both for me and for the translators) to have to translate this long strings than to use the already existing strings differentiating one and many.

Furthermore, most of this strings are already translated (since they are already used on the settings page), so I am going to close this pr.

Nevertheless, thanks for putting the effort into it.