Update rule trigger to support upto 15 rules

Author: vguruparan

src/routes/page/agent/[agentId]/agent-components/agent-rule.svelte

@@ -3,7 +3,7 @@
     import { Card, CardBody, Input, Button } from '@sveltestrap/sveltestrap';
 	import { getAgentRuleOptions } from '$lib/services/agent-service';
 
-    const limit = 5;
+    const limit = 15;
     const textLimit = 100;
 
     /** @type {import('$agentTypes').AgentModel} */