CLEAN architecture switch

[Jarco-dev]

• Keep command data at the command also on a subcommand level
• Buttons (and similar) make use of abstract classes you've got them for a reason
• Switch to TypeORM for the database ORM
• Implement better pagination embeds with local data

Sources for examples / information:

• https://github.com/tarek-saimouah/node_clean_architecture
• https://medium.com/@DrunknCode/clean-architecture-simplified-and-in-depth-guide-026333c54454
• https://rcmonteiro.com/post/structuring-your-code-with-clean-architecture-a-5-layer-approach