chore(github): update issue templates

.github/ISSUE_TEMPLATE/question-v3.yml

@@ -0,0 +1,14 @@
+name: "💬 Question (v3)"
+description: Ask a question about the module (v3 only).
+labels: ["question", "v3"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before asking a question, please make sure that you have read through our [v3 documentation](https://ui3.nuxt.dev/) and existing [issues](https://github.com/nuxt/ui/issues?q=is%3Aissue%20is%3Aopen%20sort%3Aupdated-desc%20label%3Av3).
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+    validations:
+      required: true