Added an utility script to process raw txt spell list

This script for the most part consists of some magic to account for ocr errors.
Some post processing still might be needed, but it is much faster that way
than copying spell descriptions manually.
Fixed problem which lead to opening a wrong spell card when filter is applied
Full list of dnd 5e spells added.

Spells are generated with a script and edited slightly. Some ocr mistakes can still be there.