[Improvement] Autolocalization of the "Search" field

[Ricardo1980]

It could be used getResources().getString(android.R.string.search_go) so we don't have to localize that string.
Actually I'm learning Android and I don't know how to localize that without modifying your library (which is a bad practice, as I would lose any changes if I update the library from your repo), so I think using the SO strings would be nice in this case.

[thomasdao]

that's very good suggestion 👍 Do you want to send a pull request or work on some existing PR #14? Thanks