Append similar search id to sidebar links if any.
Append similar search id to sidebar links if any.

moebooru/moebooru,nanaya/moebooru,euank/moebooru-thin,nanaya/moebooru,nanaya/moebooru,moebooru/moebooru,euank/moebooru-thin,nanaya/moebooru,euank/moebooru-thin,euank/moebooru-thin,moebooru/moebooru,moebooru/moebooru,nanaya/moebooru,euank/moebooru-thin,moebooru/moebooru