Add I18N support for contribution guidelines prompt

What does this MR do and why?

Add I18N support for contribution guidelines prompt.

Screenshots or screen recordings

The effect after modifying the local po file:

Before	After

How to set up and validate locally

Visit path: http://127.0.0.1:3000/<your-group>/<your-project>/-/issues/new

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cc JH EM @prajnamas