fix: App::version() not returning the correct version

[SRWieZ]

From electron code comment:

getVersion(): string; The version of the loaded application. If no version is found in the application's package.json file, the version of the current bundle or executable is returned.

[SRWieZ]

Hmm, I think it still works in production.

But not with native:serve. Sooo.. a smaller fix than I thought, but still a fix.