rename Federalist to Pages in Slack

[amirbey]

User Story

Background (Optional)

Acceptance Criteria

• [ ] :pages: slack emoji is available for use
• [ ] slack channels are renamed pages

After evaluating, edit this part:

Level of effort - <low/medium/high>

Implementation outline (if higher than "low" effort):

• [ ] create :pages slack emoji
• [ ] rename slack channels???