Refine GitHub Actions greetings for issues and PRs

Updated greetings.yml to specify event types for issues and pull requests. Enhanced issue and PR messages for better formatting.

Author: naheel0

.github/workflows/greetings.yml

@@ -1,6 +1,10 @@
 name: 🌌 BeyteFlow Welcome
 
-on: [pull_request_target, issues]
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened]
 
 jobs:
   greeting:
@@ -12,5 +16,13 @@ jobs:
       - uses: actions/first-interaction@v1
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          issue-message: "⚡ **Connection Established!** Thank you for opening your first issue in the BeyteFlow ecosystem. Our core maintainers will intercept this stream shortly."
-          pr-message: "🚀 **Incoming Transmission!** Welcome to the flow. Your first Pull Request has been received. Our automated diagnostics are now scanning your bytes."
+          issue-message: |
+            ⚡ **Connection Established!**
+            Thank you for opening your first issue in the **BeyteFlow ecosystem**.
+            Our core maintainers will intercept this stream shortly.
+
+          pr-message: |
+            🚀 **Incoming Transmission!**
+            Welcome to the flow.
+            Your first Pull Request has been received.
+            Our automated diagnostics are now scanning your bytes.