Add Discussion and Issues templates/config (#1238)

* Add new config for issues and use discussions instead 
* Add discusssion templates in order to improve the information flow

.github/DISCUSSION_TEMPLATE/bug-report.yml

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+title: "[Bug] "
+labels: ["Q&A"]
+body:
+  - type: markdown
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of what the bug is.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      label: Steps to reproduce.
+      value: |
+        1. Go to '...'
+        2. Click on '....'
+        3. Scroll down to '....'
+      ...
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      label: Expected behavior
+      description: A clear and concise description of what you expected to happen.
+  - type: dropdown
+    attributes:
+      label: Python Version
+      options:
+        - 3.7
+        - 3.8
+        - 3.9
+        - 3.10
+        - 3.11
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: Django Version
+      options:
+        - 2.2
+        - 3.0
+        - 3.1
+        - 3.2
+        - 4.0
+        - 4.1
+        - 4.2
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        Add any other context about the problem here.

.github/DISCUSSION_TEMPLATE/feature-request.yml

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+title: "[Feature] "
+labels: ["Ideas"]
+body:
+  - type: checkboxes
+    attributes:
+      label: I've already checked other feature proposals
+      required: true
+  - type: dropdown
+    attributes:
+      label: Is your feature request related to a problem?
+      options:
+        - Yes
+        - No
+  - type: markdown
+      attributes:
+        label: Please describe your feature.
+        required: true
+        value: |
+          A clear and concise description of what the problem is. Ex. I'm always frustrated when ...
+  - type: markdown
+    attributes:
+      label: Describe the solution you'd like.
+      description: A clear and concise description of what you want to happen.
+      required: true
+  - type: markdown
+    attributes:
+      label: Describe alternatives you've considered.
+      description: A clear and concise description of any alternative solutions or features you've considered.
+  - type: markdown
+    attributes:
+      label: Additional context.
+      description: Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Bug Report
+    url: https://github.com/django-wiki/django-wiki/discussions/new
+    about: Submit a GitHub issue
+  - name: Feature Request
+    url: https://github.com/django-wiki/django-wiki/discussions/new
+    about: Request a feature to be added to the platform
+  - name: Ask a Question
+    url: https://github.com/django-wiki/django-wiki/discussions/new
+    about: Ask questions and discuss with other community members