Update GitHub issue templates

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,43 @@
+name: "\U0001F38A Feature request"
+description: Suggest adding a feature
+labels: [enhancement]
+body:
+  - type: textarea
+    id: summary
+    attributes:
+      label: Summary
+      description: Please add a concise summary of your suggestion here.
+    validations:
+      required: true
+  - type: textarea
+    id: rationale
+    attributes:
+      label: Rationale
+      description: Is your feature request related to a problem? Please describe it!
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Describe the solution you'd like and the alternatives you have considered.
+  - type: textarea
+    id: additional_information
+    attributes:
+      label: Additional information
+      description: Add any other context about the feature request here.
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: General information
+      options:
+        - label: I have searched the issues of this repo and believe this is not a duplicate
+          required: true
+  - type: markdown
+    attributes:
+      value: |
+        If you want to ask a question about Warewulf (how to use it, what it
+        can currently do, etc.), try the `#warewulf` channel on [our
+        Slack](https://warewulf.org/help) first. We have a welcoming community
+        and chances are you'll get your reply faster and without opening an
+        issue.
+        
+        Other than that, thanks for taking the time to contribute to Warewulf!