feat: add package request template (#3)

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,33 @@
+name: Request a Package
+description: Request an RPM package to be included in the base image
+labels: [package-request]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to fill out this request!
+  - type: textarea
+    id: describe-bug
+    attributes:
+      label: Describe the package
+      description: Include why you feel this should be on the image
+      placeholder: Tell us what you need
+      value: "I'd like to request the package `vim` on the main image"
+    validations:
+      required: true
+  - type: dropdown
+    id: image
+    attributes:
+      label: Image
+      description: Which specific image do you want?
+      options:
+        - Bazzite
+        - Kinoite
+        - LXQt
+        - Mate
+        - Silverblue
+        - Ubuntu
+        - Vauxite
+    validations:
+      required: true