Refactor the GetGamesByUser query to improve performance

[StevenWeathers]

Fixes #533

Description

This PR fixes a performance issue with getting the list of User Games which when Team Games were added decreased performance drastically for smaller resourced db instances.

What type of PR is this? (check all applicable)

• [ ] 🍕 Feature
• [x] 🐛 Bug Fix
• [ ] 📝 Documentation Update
• [ ] 🎨 Style
• [x] 🧑‍💻 Code Refactor
• [x] 🔥 Performance Improvements
• [ ] ✅ Test
• [ ] 🤖 Build
• [ ] 🔁 CI
• [ ] 📦 Chore (Release)
• [ ] ⏩ Revert

Related Tickets & Documents

Fixes #533

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