SettingsSearchMatcher

Ranks settings results by where the query landed, following the weights Meshtastic-Apple's settings search shipped (spec 019, FR-011): a hit on the name outranks one in the explanation, and an exact name outranks a prefix.

Case folding is Unicode-aware, so "lora" finds "LoRa" and "prasa" does not have to be typed as "Přáša" in the wrong case. Diacritics are not folded: "prasa" will not find "Přáša". That matches node search, which has the same limit.