fix: bug eslint in apps/core and fix logic isDefault in migrate_service

[narumedsr-p]

Why did you create this PR

• Fix bug between eslint and backend
• Fix migrate user logic

What did you do

• Add some dependencies to package.json
• Comment out Course API @Nesta1223 should fix it after this merge
• 1 User has only 1 isDefault cart at a time (Choose the newest carts)

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Latest commit: b18244f

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