Update issue creation templates (#823)

Rather than providing a free text template, as we've done so far, introduce a form to more stringently require information that we need to debug the problem.

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,58 @@
+name: Feature Request
+description: What would you like to see from rpi-imager?
+title: "[FEATURE]: "
+labels: ["enhancement", "triage"]
+projects: []
+assignees: []
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this feature request!
+  - type: textarea
+    id: what-could-be-better
+    attributes:
+      label: Is your feature request related to a problem? Please describe.
+      description: A description of the issue you're facing that requires this feature.
+      placeholder: Ex. I never notice when OS writing has finished...
+    validations:
+      required: true
+  - type: textarea
+    id: what-do-you-want-to-see
+    attributes:
+      label: Describe the solution you would like to see implemented
+      description: A clear and concise description of what you want to happen.
+      placeholder: Ex. rpi-imager should initiate a confetti shower when writing is finished
+    validations:
+      required: true
+  - type: textarea
+    id: what-else-did-you-consider
+    attributes:
+      label: Describe alternatives you've considered
+      description: A clear and concise description of any alternative solutions or features you've considered.
+      placeholder: Ex. Alert sirens, SMS notifications, hiring a sky writer
+    validations:
+      required: true
+  - type: textarea
+    id: anything-else
+    attributes:
+      label: Additional context
+      description: Add any other context or screenshots about the feature request here.
+      placeholder: Ex. Must be large confetti to make it easier to clean up
+    validations:
+      required: true
+  - type: dropdown
+    id: version
+    attributes:
+      label: Version
+      description: What version of our software did you last run?
+      options:
+        - 1.8.5 (Default)
+        - 1.8.4
+        - 1.8.3
+        - 1.8.2
+        - 1.8.1
+        - < 1.8.0
+      default: 0
+    validations:
+      required: true