Names always get flagged as incorrect even when capitalised

i always have to add peoples names to my dictionary which isn't that bad, but still

The issue gives no source file, test, or entry point, so begin by reproducing the warning for a capitalized personal name and locating the Rust checker logic that emits it. Done means valid capitalized names are no longer incorrectly flagged while other spelling checks continue to work.

Written by the indexing model from the issue text.