feat: added an error for caps in command_option

src/dpp/slashcommand.cpp

@@ -333,6 +333,9 @@ command_option_choice &command_option_choice::fill_from_json(nlohmann::json *j)
 command_option::command_option(command_option_type t, const std::string &n, const std::string &d, bool r) :
 	type(t), name(n), description(d), required(r), autocomplete(false)
 {
+	if (std::any_of(n.begin(), n.end(), [](unsigned char c){ return std::isupper(c); })) {
+		throw dpp::logic_exception("Command options can not contain capital letters in the name of the option.");
+	}
 }
 
 command_option& command_option::add_choice(const command_option_choice &o)