[macOS and iOS export] Add localized application name to the translation .plist files.

[bruvzg]

• Adds an Info.plist translation for each language in the project for the iOS export (similar to [macOS] Add empty translation files to the exported app bundle, to allow translation detection by the OS. #57577).
• Adds localized display names from application/config/name_{locale} into generated .plist s for the iOS and macOS exports (was used for this purpose for Android exports).

Note: in case of macOS, .app bundle file name should match non-localized name (which is true by default), if it's renamed, Finder will use file name.

Fixes #58709

[akien-mga]

Thanks!

[bruvzg]

There are some other strings, like microphone and camera usage descriptions, that can be translated in the .plist files. But these strings are in the export settings, and I'm not sure what is the best way to add translations for them.

Maybe it's better to move them to the project settings and translate by adding custom properties in the same way to the app name.

[akien-mga]

I think the way the app name is translated is actually somewhat hacky, it would be better to come up with a cleaner design for all this.

We could have a custom property editor control to edit multi-language strings so that one can easily add translations (similar to Dictionary editor I guess, but enforcing that the keys are valid language codes).

As for moving to project settings, I'm of two minds about it. Since they're platform specific and related to the export process, it makes most sense IMO to have them in the export preset. But if one wants to have multiple export presets for a given platform (e.g. full game and demo), it might be tedious not to have them shared... though at the same time some of those strings might need to be customized per-preset (like the name could have " Demo" added in the demo preset). Overall I think they're best in the preset, and the preset can be duplicated in the interface to create variants while sharing the base data like microphone and camera usage descriptions.

[akien-mga]

Cherry-picked for 3.5.