📝(repo) Update bug and feature request template names

[Snugug]

Description

Update names of issue templates to make it more clear that they're for ChromeOS.dev

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Other

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• Read the Contributing Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
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