[Suggestion] Make Qt more tolerant with shortcuts in full-width brackets on macOS.

In strings_??.qm translation files, some translators may make mistakes that putting ampersanded shortcuts into full-width brackets as follows:

This won't render the shortcut ineffective on Windows but will render it incorrectly on macOS. (See the screenshot I posted in my 2nd reply towards this ticket.)

The following is the format that translators are expected to do:

While this appears to the duty of translators, there are two difficulties:

1. Some translators are outsourced workers for a company, and the company may have extremely-limited human resources devotable to improving the i18n experience of their products.
2. "Using full-width brackets for ampersanded shortcuts" is something already-tolerated in Windows app localization industry in (at least) Mainland China for dozens of years, and these translators are likely to have no awareness that they have to use half-width brackets in case of translating Qt apps for macOS.

Since only Qt (at this moment) requires half-width brackets in the strings_??.qm files, here's my suggestion:

When parsing raw strings from strings_??.qm files, use Regex to match ampersanded shortcut letters bracketed by full-width brackets or mixed-width brackets (like "（&A)" or "(&A）"). If matched, replace all full-width brackets in the matched range to half-width brackets. So does possible full-width ampersand symbols for shortcuts, converting such symbols to half-width.

$ EOF.