chore: update issue templates for visibility in project view (#26)

Author: onuryilmaz

.github/ISSUE_TEMPLATE/bug-report.yaml

@@ -1,6 +1,6 @@
 name: "🐛 Bug Report"
 description: Create a new ticket for a bug experienced in Greenhouse.
-title: "🐛 [BUG] - <title>"
+title: "🐛 [BUG repo-guard] - <title>"
 labels: [
   "bug",
 ]

.github/ISSUE_TEMPLATE/epic.yaml

@@ -1,6 +1,6 @@
 name: ✨ Epic
 description: Create an epic
-title: "[EPIC] - <title>"
+title: "[EPIC repo-guard] - <title>"
 body:
   - type: textarea
     id: description

.github/ISSUE_TEMPLATE/feature-request.yaml

@@ -1,6 +1,6 @@
 name: "💡 Feature Request"
 description: Create a ticket requesting a new feature
-title: "[FEAT] - <title>"
+title: "[FEAT repo-guard] - <title>"
 labels: [
   "feature"
 ]