Cf. [this comment](https://github.com/srophe/Gaddel/issues/247#issuecomment-3474280279). It appears we have "all" mapped to floruit dates: E.g., [717 in all dates](https://syriaca.org/persons/search.html?from=0&size=25&sort=author&lang=en&floruitRangeStart=717&floruitRangeEnd=717&series=The+Syriac+Biographical+Dictionary) - Compare [the same search for death dates](https://syriaca.org/persons/search.html?from=0&size=25&sort=author&lang=en&deathRangeStart=717&deathRangeEnd=717&series=The+Syriac+Biographical+Dictionary), which gives person 1294 as a result. Should we try to adjust the behavior to include birth/death dates in the "all" date selector?