Fix localization in the profile error dialog
We have a patch to provide more specific error messages when we fail to open the profile (e.g., read-only directory). But the localization on this patch seems not to work: ```shell chmod -R a-w tor-browser LC_ALL=it_IT.UTF-8 ./start-tor-browser -v ``` Console messages are in Italian as expected: ``` cp: impossibile creare il file regolare '../start-tor-browser.desktop': Permesso negato sed: impossibile aprire il file temporaneo ../sednedqWP: Permesso negato sed: impossibile aprire il file temporaneo ../sedCMdt8H: Permesso negato sed: impossibile aprire il file temporaneo ./sedKdfnQ8: Permesso negato sed: impossibile aprire il file temporaneo ../sedaAd4yu: Permesso negato ``` But our error message is in English. I think the problem is that we try to infer the language from `intl.locale.requested`, which is empty because we use multi-lingual builds (and any customization won't be fetched until we have a profile). The alternative is to entirely drop this patch, if we think it's not worth to maintain it.
issue