correct URL composition when fetching idols
correct URL composition when fetching idols

original line passed Idol model where String was expected.
SchoolIdolTomodachi/SchoolIdolAPI,SchoolIdolTomodachi/SchoolIdolAPI,laurenor/SchoolIdolAPI,rdsathene/SchoolIdolAPI,dburr/SchoolIdolAPI,SchoolIdolTomodachi/SchoolIdolAPI,dburr/SchoolIdolAPI,rdsathene/SchoolIdolAPI,laurenor/SchoolIdolAPI,dburr/SchoolIdolAPI,rdsathene/SchoolIdolAPI,laurenor/SchoolIdolAPI