Update labels for each form

.github/ISSUE_TEMPLATE/ask-for-help.yaml

@@ -1,6 +1,6 @@
 name: "❓ Ask for help"
 description: "Submit any question related to Uptime Kuma"
-title: "❓ Ask for help: "
+title: "[Help]: "
 labels: [help]
 body:
   - type: textarea

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -1,6 +1,6 @@
 name: "🐛 Bug Report"
 description: "Submit a bug report to help us improve"
-title: "🐛 Bug Report: "
+title: "[Bug]: "
 labels: [bug]
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -1,6 +1,6 @@
 name: 🚀 Feature
 description: "Submit a proposal for a new feature"
-title: "🚀 Feature: "
+title: "[Feature]: "
 labels: [enhancement]
 body:
   - type: textarea