chore: update issue templates (#1176)

Author: incendial

.github/ISSUE_TEMPLATE/change.yml

@@ -0,0 +1,43 @@
+name: "Request a change (not rule-related)"
+description: "Request a change that is not a bug fix, rule change, or new rule"
+title: "[Change request] (fill in)"
+labels:
+  - "type: enhancement"
+body:
+  - type: input
+    attributes:
+      label: DCM version
+      description: |
+        What version of DCM are you currently using?
+      placeholder: |
+        e.g. v8.0.0
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What problem do you want to solve?
+      description: |
+        Please explain your use case in as much detail as possible.
+      placeholder: |
+        DCM currently...
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What do you think is the correct solution?
+      description: |
+        Please explain how you'd like to change DCM to address the problem.
+      placeholder: |
+        I'd like DCM to...
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: Participation
+      options:
+        - label: I am willing to submit a pull request for this change.
+          required: false
+  - type: textarea
+    attributes:
+      label: Additional comments
+      description: Is there anything else that's important for the team to know?

.github/ISSUE_TEMPLATE/new-rule-proposal.md

@@ -0,0 +1,43 @@
+name: "New rule proposal"
+description: "Propose a new rule."
+title: "[New rule] (fill in)"
+assignees: incendial
+labels:
+  - area-rules
+  - "type: enhancement"
+body:
+  - type: markdown
+    attributes:
+      value: Thank you for your lint idea!
+  - type: textarea
+    attributes:
+      label: Rule details
+      description: What should the new rule do?
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: What type of rule is this?
+      options:
+        - Warns about a potential problem
+        - Suggests an alternate way of doing something
+        - Enforces a formatting/stylistic preference
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Example code
+      description: Please provide some example Dart code that this rule will warn about. This field will render as Dart.
+      render: dart
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: Participation
+      options:
+        - label: I am willing to submit a pull request to implement this rule.
+          required: false
+  - type: textarea
+    attributes:
+      label: Additional comments
+      description: Is there anything else that's important for the team to know?

.github/ISSUE_TEMPLATE/new-rule.yml

@@ -0,0 +1,8 @@
+name: "Ask a Question, Discuss"
+description: "Get help using DCM."
+title: "[Question] (fill in)"
+assignees: incendial
+labels:
+  - "type: question"
+body:
+  - type: textarea

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,59 @@
+name: "Request a rule change"
+description: "Request a change to an existing rule."
+title: "[Rule change] (fill in)"
+assignees: incendial
+labels:
+  - area-rules
+  - "type: enhancement"
+body:
+  - type: input
+    attributes:
+      label: What rule do you want to change?
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: What change to do you want to make?
+      options:
+        - Generate more warnings
+        - Generate fewer warnings
+        - Implement autofix
+        - Implement suggestions
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: How do you think the change should be implemented?
+      options:
+        - A new option
+        - A new default behavior
+        - Other
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Example code
+      description: Please provide some example code that this change will affect. This field will render as Dart.
+      render: dart
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What does the rule currently do for this code?
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What will the rule do after it's changed?
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: Participation
+      options:
+        - label: I am willing to submit a pull request to implement this change.
+          required: false
+  - type: textarea
+    attributes:
+      label: Additional comments
+      description: Is there anything else that's important for the team to know?