migrate to std::ranges

Move the various seq_ functions, as well as std::(stable_)sort,
std::accumulate, std::transform, std::find, std::find_if to their C++20
std::ranges counterparts.

lib/mu-query-parser.cc

@@ -55,7 +55,7 @@ looks_like_matcher(const Sexp& sexp)
 		return false;
 
 	const auto symbol{sexp.front().symbol()};
-	if (seq_some(value_syms, [&](auto &&sym) { return symbol == sym; }))
+	if (std::ranges::any_of(value_syms, [&](auto &&sym) { return symbol == sym; }))
 		return true;
 	else if (!!field_from_name(symbol.name) || field_is_combi(symbol.name))
 		 return true;