- pl validation.yaml string line is Polish (Winter's pl file leaves it
in English); the header notes the deliberate divergence
- pl validate.yaml min and max use Winter's numeric wording, since those
keys only serve numeric and integer bounds
- string requires a string value (pointers and named string types
included), url a URL matching Laravel's pattern (urlPattern, shared
with lagoon.ValidateRequest); both skip an empty or blank value
- lagoon::validate.string and .url in the en and pl catalogs, English
fallbacks for a nil translator
- settings saves whose model rules use nullable|string|max:255 or
nullable|url|max:500 no longer fail with an unrecognized-rule error
