bug(developer): kmc-keyboard-info should not list web support for multi-keyboard packages

> I wonder also about the bundle packages (e.g. galaxie_greek_hebrew_mnemonic) if there may be a separate issue to tackle here? It seems like we are adding support for web platforms but the bundled name will not be available in web.

This probably needs to be tackled on the compiler side. A little more nuance may be needed to exclude web platforms from multi-keyboard packages.

_Originally posted by @mcdurdin in https://github.com/keymanapp/keyboards/issues/2793#issuecomment-2143621726_

See also keymanapp/keyboards#2423