Since 2.23.0, saving preferences always close and reopen main window (not only on language modification)

[Oxalin]

Reproduced under Windows with v2.24.4

7ccab93 introduced closeAndReopenMainWindow(). This should be triggered only on language modifcation so the new language is applied to the interface.

However, as of version 2.23.0, any save of preferences calls closeAndReopenMainWindow(). onLanguageChanged() is probably being triggered for wrong events.

[perry-mitchell]

It's not a bug, and was required when originally implemented. Due to more recent features it's no longer required and could be removed.

[quintushr]

After reviewing the code, it seems that triggering the event on every configuration save might need some optimization. Instead of calling the onLanguageChanged() event with every preference save, could we consider triggering it only when there are actual language modifications? This might address the issue raised by @Oxalin while still maintaining the necessary functionality. What are your thoughts on this approach?