Use a GitHub form for issues rather than a hard-to-read, easy-to-igno…

…re template. (#12982)

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>

.github/ISSUE_TEMPLATE/BUG_REPORT.yml

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+name: Bug report
+description: Create a report to help us improve
+body:
+  - type: markdown
+    attributes:
+      value: |
+        **THIS IS NOT A SUPPORT CHANNEL!**
+        **IF YOU HAVE SUPPORT QUESTIONS ABOUT RUNNING OR CONFIGURING YOUR OWN HOME SERVER**, please ask in **[#synapse:matrix.org](https://matrix.to/#/#synapse:matrix.org)** (using a matrix.org account if necessary).
+
+        If you want to report a security issue, please see https://matrix.org/security-disclosure-policy/
+
+        This is a bug report form. By following the instructions below and completing the sections with your information, you will help the us to get all the necessary data to fix your issue.
+
+        You can also preview your report before submitting it.
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Describe the problem that you are experiencing
+    validations:
+      required: true
+  - type: textarea
+    id: reproduction_steps
+    attributes:
+      label: Steps to reproduce
+      description: |
+        Describe the series of steps that leads you to the problem.
+
+        Describe how what happens differs from what you expected.
+      placeholder: Tell us what you see!
+      value: |
+        - list the steps
+        - that reproduce the bug
+        - using hyphens as bullet points
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        ---
+
+        **IMPORTANT**: please answer the following questions, to help us narrow down the problem.
+  - type: input
+    id: homeserver
+    attributes:
+      label: Homeserver
+      description: Which homeserver was this issue identified on? (matrix.org, another homeserver, etc)
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: Synapse Version
+      description: |
+        What version of Synapse is this homeserver running?
+
+        You can find the Synapse version by visiting https://yourserver.example.com/_matrix/federation/v1/version
+
+        or with this command:
+
+        ```
+        $ curl http://localhost:8008/_synapse/admin/v1/server_version
+        ```
+
+        (You may need to replace `localhost:8008` if Synapse is not configured to listen on that port.)
+    validations:
+      required: true
+  - type: dropdown
+    id: install_method
+    attributes:
+      label: Installation Method
+      options:
+        - Docker (matrixdotorg/synapse)
+        - Debian packages from packages.matrix.org
+        - pip (from PyPI)
+        - Other (please mention below)
+  - type: textarea
+    id: platform
+    attributes:
+      label: Platform
+      description: |
+        Tell us about the environment in which your homeserver is operating...
+        e.g. distro, hardware, if it's running in a vm/container, etc.
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: |
+        Please copy and paste any relevant log output, ideally at INFO or DEBUG log level.
+        This will be automatically formatted into code, so there is no need for backticks.
+
+        Please be careful to remove any personal or private data.
+
+        **Bug reports are usually very difficult to diagnose without logging.**
+      render: shell
+    validations:
+      required: true
+  - type: textarea
+    id: anything_else
+    attributes:
+      label: Anything else that would be useful to know?

changelog.d/12982.misc

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+Use a GitHub form for issues rather than a hard-to-read, easy-to-ignore template.