Preparing various updates to the Project Team pages.

[anisa-hawes]

Preparing various updates to the Project Team pages:

• Update Adam's team: status to false
• Add team_end: 2026
• Update Alexandre's affiliation + bio
• Update Silvia's email

Closes #3797
See also: #3796

Checklist

• Assign yourself in the "Assignees" menu
• Add the appropriate "Label"
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