[Commands] Cleanup #ban, #ipban, #flag, #kick, #setlsinfo, and #setpass Commands. (#2104)

* [Commands] Cleanup #ban, #ipban, #flag, and #kick Commands.
- Cleanup messages and logic.
- Add ServerFlagUpdate_Struct for flag updates.

* Add #setlsinfo and #setpass to cleanup.

* Update setlsinfo.cpp

* Update database.cpp

* Update database.cpp

* Update command.cpp

zone/gm_commands/ipban.cpp

@@ -2,20 +2,32 @@
 
 void command_ipban(Client *c, const Seperator *sep)
 {
-	if (sep->arg[1] == 0) {
-		c->Message(Chat::White, "Usage: #ipban [xxx.xxx.xxx.xxx]");
+	int arguments = sep->argnum;
+	if (!arguments) {
+		c->Message(Chat::White, "Usage: #ipban [IP]");
+		return;
 	}
-	else {
-		if (database.AddBannedIP(sep->arg[1], c->GetName())) {
-			c->Message(
-				Chat::White,
-				"%s has been successfully added to the banned_ips table by %s",
-				sep->arg[1],
-				c->GetName());
-		}
-		else {
-			c->Message(Chat::White, "IPBan Failed (IP address is possibly already in the table?)");
-		}
+
+	std::string ip = sep->arg[1];
+	if (ip.empty()) {
+		c->Message(Chat::White, "Usage: #ipban [IP]");
+		return;
+	}
+
+	if (database.AddBannedIP(ip, c->GetName())) {
+		c->Message(
+			Chat::White,
+			fmt::format(
+				"IP '{}' has been successfully banned.",
+				ip
+			).c_str()
+		);
+	} else {
+		c->Message(
+			Chat::White,
+			"IP '{}' has failed to be banned, the IP address may already be in the table.",
+			ip
+		);
 	}
 }