Add Outreach Templates And Stakeholder Profiles Documentation

[KarimMakki]

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Add Outreach Email Templates & Stakeholder Profiles

Add structured stakeholder profiles and tailored cold outreach templates to the documentation

closes #242

General Checks

• the branch is up to date with main
• the code works when pulled and run locally
• All CI checks pass (or at least discussed)
• all conflicts are resolved (if any)
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[robi-mengs]

Well done!