Enable i18n support in JazzminSelect

[mardukbp]

In order to enable the i18n support for Select2 the media property of JazzminSelect should be defined as:

from django.contrib.admin.widgets import get_select2_language

@property
def media(self):
    i18n_lang = get_select2_language()
    i18n_js = (
        ("admin/js/vendor/select2/i18n/%s.js" % i18n_lang, "admin/js/jquery.init.js")
        if i18n_lang
        else ()
    )
    return forms.Media(
        css={"all": ("vendor/select2/css/select2.min.css",)},
        js=("vendor/select2/js/select2.min.js",) + i18n_js
    )