Migrate db.go and library.go to goqu

[CrescentKohana]

• Initial rework Migrate db.go, library.go to goqu #20
• Handle the scenario when the ID exists in db in newLibrary
• Rewrite CombinedLibrary struct

[karmek-k]

Working on it!

[CrescentKohana]

Good work with #20 🎉

I'll close this after both

• https://github.com/Mangatsu/server/blob/goqu-rework/pkg/db/library.go#L95
• https://github.com/Mangatsu/server/blob/goqu-rework/pkg/db/library.go#L10
  • Partially Create models for the database types (for goqu) #15

have been resolved.

[CrescentKohana]

ef7639f fixes Handle the scenario when the ID exists in db in newLibrary

[karmek-k]

@Luukuton Sorry for not responding earlier, I'll try to handle the third task on the weekend.

[CrescentKohana]

@karmek-k No problem!