Use github issue templates

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: File a bug report.
+title: "[Bug]: "
+labels: ["bug", "triage"]
+projects: ["freedomofpress/dangerzone"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Hi, and thanks for taking the time to open this bug report. 
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Can you specify the steps you followed, so we can reproduce?
+      value: "A bug happened!"
+    validations:
+      required: true
+  - type: dropdown
+    id: os-name
+    attributes:
+      label: OS Name
+      description: Which Operating System are you using?
+      options:
+        - Windows
+        - MacOS
+        - Linux
+    validations:
+      required: true
+  - type: textarea
+    id: os-version
+    attributes:
+      label: Operating System Version
+      description: |
+        Which version of your operating sytem do you use?
+
+        - Follow these links to find out the OS version (on [Windows](https://learn.microsoft.com/en-us/windows/client-management/client-tools/windows-version-search), on [OSX](https://support.apple.com/en-us/109033))
+        - On Linux, you should have good results with this command `cat /etc/os-release`
+    validations:
+      required: true
+  - type: textarea
+    id: dangerzone-version
+    attributes:
+      label: Dangerzone version
+      description: Which version of Dangerzone are you using?
+    validations:
+      required: true
+  - type: textarea
+    id: docker-desktop-version
+    attributes:
+      label: Docker Desktop version
+      description: |
+        On Windows and MacOS, if you're using Docker Desktop, which version is it?
+        Please give us the full output of this command: `docker version`
+
+        This will be automatically formatted into code, so no need for backticks.
+      render: shell
+  - type: textarea
+    id: podman-version
+    attributes:
+      label: Podman version
+      description: |
+        On Linux, which version of podman are you using?
+        Please give us the full output of this command: `podman version`
+
+        This will be automatically formatted into code, so no need for backticks.
+      render: shell
+  - type: textarea
+    id: logs
+    attributes:
+      label: Additional log output
+      description: |
+        If your bug happen during conversion, please copy and paste the
+        following commands in your terminal, and provide us with the output
+        (replace `docker` with `podman` if on Linux):
+
+        ```bash
+        docker info -f 'json'
+        docker images
+        docker run hello-world
+        ```
+
+        This will be automatically formatted into code, so no need for backticks.
+      render: shell

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Security vulnerabilities
+    url: https://github.com/freedomofpress/dangerzone?tab=security-ov-file
+    about: Please report security vulnerabilities here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+**Is your feature request related to a problem? Please describe.**
+
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+
+Add any other context or screenshots about the feature request here.