Dyslexia "interpeter" - find sign should have some means of autocorrection

[Bluebie]

Dyslexic users sometimes enter obscure mispellings like "interpeter" unknowingly, and can face a "no results found" response as a result. Find Sign should be able to do something in this case, to provide a reasonable result or suggestions for spelling correction.

Some options:

• It maybe possible to have the browser client load a wasm fasttext implementation with a compressed model, and compute a new word vector for obscure misspellings.
• The dataset could ship english word labels for each vector in the search index, and offer a "did you mean [x]?" type of response when no results are found, by looking for similar strings in the written labels list.

[Bluebie]

Taking advantage of the new index format which provides words lists to the browser, if a query fails to find word vectors for the word tokens in the query, fastest-levenshtein is used to find similar words in the dataset and suggest an autocorrection.

Feedback from Dyslexic users has been positive. Deployed to production.