chore: create feature request issue template

Added a feature request template to streamline suggestions for feature requests.

Author: colinscz

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,36 @@
+name: "🚀 Feature request"
+description: Suggest a feature that will improve Npmx
+labels: ["pending triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to fill out this feature request!
+
+       Please carefully read the contribution docs before suggesting a new feature
+       👉 https://github.com/npmx-dev/npmx.dev/blob/main/CONTRIBUTING.md
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe the feature
+      description: A clear and concise description of what you think would be a helpful addition to Npmx, including the possible use cases and alternatives you have considered. If you have a working prototype or module that implements it, please include a link.
+      placeholder: Feature description
+    validations:
+      required: true
+  - type: checkboxes
+    id: additional-info
+    attributes:
+      label: Additional information
+      description: Additional information that helps us decide how to proceed.
+      options:
+        - label: Would you be willing to help implement this feature?
+  - type: checkboxes
+    id: required-info
+    attributes:
+      label: Final checks
+      description: Before submitting, please make sure you do the following
+      options:
+        - label: Read the [contribution guide](https://github.com/npmx-dev/npmx.dev/blob/main/CONTRIBUTING.md).
+          required: true
+        - label: Check existing [issues](https://github.com/npmx-dev/npmx.dev/issues).
+          required: true