Remove MDB dependency

[szyb]

MDB is a Material Design for Bootstrap v5 & v4. We use it to get menu, buttons, icons and some fonts out-of-the-box. However this framework is limiting us with upgrading Angular to the newest version as soon as it arrives. We need to wait couple of months to be able to work on Angular update. Moreover there are more and more options out of the free tier (which we use) and paid tier is forbidden to OSS projects.

This might be huge task and need to investigate first whether it is worth to remove MDB dependency or just leave it.

Alternatives: Angular Material UI

To do:

• menu / main page
• footer
• dialogs
• buttons
• more?