word/edit: read fractional crop coordinates

word/edit: read fractional crop coordinates

Clean up various separators (,-x;:/) from manual input into common comma,
and allow dot for possible future fractions in large numbers:

	UPDATE word SET image = jsonb_set(image, '{crop32}',
		regexp_replace(image->>'crop32', '[^0-9,]', ',', 'g')
	) WHERE image->>'crop32' IS NOT NULL;

Decided against dividing by 1000 to simplify code, but this would do that:

	UPDATE word SET image = jsonb_set(image, '{crop32}',
		to_jsonb(array_to_string(array(
			SELECT unnest(string_to_array(image->>'crop32', ','))::float / 1000
		), ','))
	) WHERE image->>'crop32' IS NOT NULL;