feat: use issue types

.github/ISSUE_TEMPLATE/01-package_bug_report.yml

@@ -1,6 +1,8 @@
 name: Bug report
 description: Report an issue with discord.js or another package.
-labels: [t:bug, t:need reproduction]
+labels:
+  - t:need reproduction
+type: Bug
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/02-application_bug_report.yml

@@ -1,6 +1,8 @@
 name: Websites bug report
 description: Report an issue with the documentation or guide websites.
-labels: [t:bug, t:need reproduction]
+labels:
+  - t:need reproduction
+type: Bug
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/03-feature_request.yml

@@ -1,6 +1,6 @@
 name: Feature request
 description: Request a new feature (discord.js accepts documented features of the official Discord developer API only!)
-labels: [t:feature request]
+type: Feature
 body:
   - type: markdown
     attributes: