fix: adjust workspace upgrade pricing modal

[brandonroberts]

Description

• Adjusts workspace upgrade modal w/pricing

Related Tickets & Documents

Mobile & Desktop Screenshots/Recordings

Steps to QA

1. Login
2. Choose a workspace over the limit
3. Go to the workspace upgrade modal
4. Note the new pricing
5. Click the upgrade button to go to the test checkout

Tier (staff will fill in)

• [ ] Tier 1
• [ ] Tier 2
• [ ] Tier 3
• [x] Tier 4

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