Implement fuzzy matching rules.

[XV-02]

Search results seem to be overly strict.

For example, searching for protonmail and proton mail return two separate lists of fully discrete search results.

Potentially, another example might be searching vscode, which has no returns despite the existence of VSCodium. However, that might me better resolved through other means such as category or keyword matching and relying on the authors to have sensible tags.