awesome-loopback4 to gather videos, tutorials and articles about LoopBack

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We have a community user did a great job in gathering connectors, tutorials, examples from the community in [awesome-loopback](https://github.com/pasindud/awesome-loopback). I'm wondering if it would be good to have a `awesome-loopback4` for similar purpose.

There seem to be more materials created by the community (I'm only listing a few):

- Videos
- LoopBack 4 Tutorial for beginners https://www.youtube.com/watch?v=cgBCRY169qg
- LoopBack 4 Explained - Introduction [Node.js/API Development] Lesson 1, https://www.youtube.com/watch?v=pDGWb-q65qM
- GraphQL Server in minutes using OpenAPI-to-GraphQL and LoopBack 4, https://www.youtube.com/watch?v=s2hScucNmaA&t=94s

- Tutorials
- LoopBack 4 Database Configuration https://itnext.io/loopback-4-database-configuration-8f085399268
- Mounting Loopback 4 Rest API in Express with Winston Logging https://karannagupta.com/mounting-loopback-4-rest-api-in-express-with-winston-logging/
- A Multi-tenant application with LoopBack 4 https://medium.com/@this.is.samy/https-medium-com-a-multi-tenant-application-with-loopback-4-b28d68dd0dd6

No repository file or test is named. Review the existing awesome-loopback collection and the linked LoopBack 4 videos and tutorials first, then determine where a new collection should live and which resources belong in it; done means the proposed awesome-loopback4 list is organized and includes the relevant community materials.

Written by the indexing model from the issue text.