docs: Switch issue and PR templates to YAML

.github/ISSUE_TEMPLATE/bug-report.yml

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+name: Bug Report
+description: File a bug report
+title: "[Bug]"
+
+body:
+  - type: textarea
+    attributes:
+      label: Description of the Bug
+      description: What's the issue you encountered?
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Reproduction Steps
+      description: How can the issue be reproduced?
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected Behaviour
+      description: What do you expect to happen?
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: OS
+      placeholder: "e.g. Windows 11"
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Browser
+      placeholder: "e.g. Chrome"
+    validations:
+      required: false
+
+  - type: input
+    attributes:
+      label: Device
+      placeholder: "e.g. iPhone 15"
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Additional Notes
+      description: Add any other notes or screenshots about the bug here.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature-request.yml

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+name: Feature Request
+description: Suggest a new feature for the CS Club website.
+
+body:
+  - type: textarea
+    attributes:
+      label: Overview
+      description: Include the basic, high-level concepts for this feature here.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Details
+      description: These may include specific methods of implementation, design considerations, or any other technical details.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Why would this feature be useful?
+      description: A clear and concise description of why this feature would improve the CS Club website.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Additional Notes
+      description: Add any other notes or screenshots about the feature request here.
+    validations:
+      required: false

.github/pull_request_template.yml

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+---
+name: Pull Request
+about: Create a pull request.
+title: "[Pull Request]"
+
+---
+
+body:
+- type: textarea
+  attributes:
+    label: Description
+    description: Briefly describe the purpose of this pull request.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Changes Made
+    description: Provide a list of changes made in this pull request.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Related Issues
+    description: Reference any related issues using keywords like "Fixes #issue-number".
+  validations:
+    required: false
+
+- type: textarea
+  attributes:
+    label: Additional Notes
+    description: Add any other notes or screenshots that might be helpful for the reviewers.
+  validations:
+    required: false