Add English Locale

[nine-codes]

As the app would later be used by people who don't speak Bosnian, let's say tourists and so on, it would be good to have at least english besides bosnian as an option and that it gets saved to the preferred settings somewhere (local storage?).

[abdeLKabir-56]

@bambooch bambooch assign me this under hactoberfest

[bambooch]

just did @abdeLKabir-56, looking into the PR soon

[abdeLKabir-56]

@bambooch I've just submitted a PR for issue #137 , please review it and let me know if you need any changes