Slovak alphabet

[fisharebest]

The Slovak alphabet is missing some letters with diacritics and double-letters

https://github.com/fisharebest/webtrees/blob/2.1.5/app/Services/LocalizationService.php#L53

https://en.wikipedia.org/wiki/Slovak_orthography

[ro-la]

@fisharebest
The fix 65993c2 is not correct

Not "ĎZ", but "DŽ", and similar to Czech it should be a "CH" after "H"

Line 53 should be:
private const SLOVAKIAN_ALPHABET = ['A', 'Á', 'Ä', 'B', 'C', 'Č', 'D', 'Ď', 'DZ', 'DŽ', 'E', 'É', 'F', 'G', 'H', 'CH', 'I', 'Í', 'J', 'K', 'L', 'Ľ', 'Ĺ', 'M', 'N', 'Ň', 'O', 'Ó', 'Ô', 'P', 'Q', 'R', 'Ŕ', 'S', 'Š', 'T', 'Ť', 'U', 'Ú', 'V', 'W', 'X', 'Y', 'Ý', 'Z', 'Ž'];

And in the private const DIGRAPHS (lines 90-96) should be added following line:
'sk' => ['DZ' => 'DZ', 'DŽ' => 'DŽ','CH' => 'CH'],

[fisharebest]

Thanks for the correction.