Refactor code structure for improved readability and maintainability

app/data/mikrotik/firewall_ipv4.json

@@ -59,6 +59,7 @@
   {
     "action": "accept",
     "chain": "input",
+    "comment": "allow",
     "log": "no",
     "log-prefix": "",
     "protocol": "icmp"
@@ -66,6 +67,7 @@
   {
     "action": "accept",
     "chain": "input",
+    "comment": "accept",
     "connection-state": "established",
     "log": "no",
     "log-prefix": ""