Refactor error handling in main.go for better clarity and instructions

.vscode/launch.json

@@ -25,7 +25,7 @@
             "request": "launch",
             "mode": "debug",
             "program": "./InfrastructureAgent",
-            "args": ["start"]
+            "args": ["start"],
         },
         {
             "name": "Node.js - Debug Current File",

InfrastructureAgent/main.go

@@ -136,7 +136,7 @@ func main() {
 			if err != nil {
 
 				slog.Error(err.Error())
-				os.Exit(2)
+				os.Exit(1)
 			}
 			slog.Info("OneUptime Infrastructure Agent Started")
 
@@ -157,7 +157,7 @@ func main() {
 			err = s.Run()
 			if err != nil {
 				slog.Error(err.Error())
-				os.Exit(2)
+				os.Exit(1)
 			}
 
 		case "uninstall", "stop", "restart":