Sometimes users will search for words containing characters that are not part of the Basic Latin Unicode and the search should match those words as well if Basic Latin equivalent is entered. For example, search for "deja vu" should match "deja vu" and "déjà vu"
Requirements/Scope: Filter drops the diacritics
- User can search by typing words with or without diacritics
ASCII folding token filter documentation: https://www.elastic.co/guide/en/elasticsearch/reference/7.11/analysis-asciifolding-tokenfilter.html