pagefind 0.9.0

Removed <header> from the list of elements that Pagefind automatically ignores
- If this element contains content you do not want to be indexed, you will now need to add data-pagefind-ignore

Added sorting functionality to Pagefind, see the Sorting documentation and the JS API Sorting usage
Added the functionality to filter an index without searching, by passing null as the search query
Added support for custom Pagefind UI strings, see Using custom Pagefind UI strings
Added a default debounce to the user input for Pagefind UI, and a corresponding debounceTimeoutMs option, see Debounce user input
- Many thanks to @dprothero for the contribution! 💝
Added a hook to process results before showing them in Pagefind UI, see the processResult documentation

Fixed running Pagefind on Windows via the npx wrapper
Pagefind now throws an error if a completely empty index is produced for whatever reason
Fixed a bug where having exactly one known and one unknown language would drop the known language pages
Fixed issue where two<br/>words would be indexed as twowords rather than the correct two words
Added <style> to the list of elements that Pagefind automatically ignores
Fixed the Pagefind UI showEmptyFilters option to work as expected
Fixed issue where adding a filter to a search with zero results would return all results for the filter
Fixed uncommon bug around chunk boundaries
- For example: If your first search index chunk started with the word hello and you searched for h, Pagefind would previously not load the hello chunk and would instead return zero results.