PeerTube/.github/PULL_REQUEST_TEMPLATE.md

## Description

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## Related issues

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## Has this been tested?

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- [ ] 👍 yes, I added tests to the test suite
- [ ] 👍 yes, light tests as follows are enough
- [ ] 💭 no, because this PR is a draft and still needs work
- [ ] 🙅 no, because they aren't needed
- [ ] 🙋 no, because I need help

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## Screenshots

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