Improve issue templates

.github/ISSUE_TEMPLATE/bug-report.yaml

@@ -0,0 +1,49 @@
+name: Reporting a Problem/Bug
+title: "[<TOOL NAME>] <TITLE>"
+description: Reporting a Problem/Bug
+labels: [Bug, Feedback]
+assignees: onflow/cadence
+body:
+  - type: markdown
+    attributes:
+      value: |
+        > **Warning**
+        > Do you experience a **crash** in Cadence?
+        > Please do **NOT** report a crasher as a bug!
+        >
+        > Instead, report it as a security issue:
+        > https://flow.com/flow-responsible-disclosure
+  - type: textarea
+    attributes:
+      label: Current Behavior
+      description: A concise description of what you're experiencing.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Expected Behavior
+      description: A concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps To Reproduce
+      description: Please share any details and steps that can reproduce the problem
+      placeholder: |
+        1. When running a transaction with the following code...
+        2. See error...
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Environment
+      description: |
+        Example:
+          - **Cadence version**: v0.31.2
+          - **Network**: Emulator
+      value: |
+        - Cadence version:
+        - Network:
+      render: markdown
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/feature-request.yaml

@@ -0,0 +1,30 @@
+name: Requesting a Feature or Improvement
+title: "[<TOOL NAME>] <TITLE>"
+description: For feature requests. Please search for existing issues first. Also see CONTRIBUTING.
+labels: [Feature, Feedback]
+assignees: onflow/cadence
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Please fill out the template below to the best of your ability.
+  - type: textarea
+    attributes:
+      label: Issue to be solved
+      description: |
+        Please present a concise description of the problem to be addressed by this feature request.
+        Please be clear what parts of the problem are considered to be in-scope and out-of-scope.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Suggested Solution
+      description: |
+        A concise description of your preferred solution. Things to address include:
+          * Details of the technical implementation
+          * Tradeoffs made in design decisions
+          * Caveats and considerations for the future
+
+        If there are multiple solutions, please present each one separately. Save comparisons for the very end.
+    validations:
+      required: false