Word sorter

Sorts words or lines alphabetically, and removes duplicates on request. Numeric sorting is separate, because sorting numbers as text puts 100 before 9.

The alphabetical sort uses locale-aware comparison, which handles accented letters the way a dictionary does rather than by codepoint — so "é" sorts next to "e" instead of after "z". It also treats embedded numbers naturally, so "item2" comes before "item10", which a plain string sort gets backwards. For a column of pure numbers, the numeric option is the right one: text sorting compares character by character, which is why "100" sorts before "9" and why so many spreadsheets look wrong after a sort.