Add Swedish Alphabet support for A-Z Filters extension

gv-add_swedish_alphabet.php

<?php //don't copy this line

add_filter( 'gravityview_az_entry_filter_localization', 'add_swedish_gravityview_az_entry_filter_localization' );
function add_swedish_gravityview_az_entry_filter_localization( $languages = array() ) {
  $languages['sv_FI'] = __( 'Swedish (Finland)', 'gravityview-az-filters' ),
  $languages['sv_SE'] = __( 'Swedish (Sweden)', 'gravityview-az-filters' ),
  $languages['sv'] = __( 'Swedish', 'gravityview-az-filters' ),
  return $languages;
}

add_filter( 'gravityview_alphabets', 'add_swedish_alphabet' );
function add_swedish_alphabet( $alphabet = array() ) {
  $alphabet['sv_FI'] = array('å', 'ä', 'ö'),
  $alphabet['sv_SE'] = array('å', 'ä', 'ö'),
  $alphabet['sv'] = array('å', 'ä', 'ö'),
  return $alphabet;
}