Update localStorage to namespace keys
Update localStorage to namespace keys

Rationale for this is that if I host similar games on the same domain,
they have a chance of overwriting each others' data.

endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia,endemic/shikaku-madness-arcadia