Update angular and refactor

[waltersajtos]

Description

Felt sorry for the next semester so I decided to refactor some things that were either huge files or just broken in general. Also finally updated to angular 11.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I updated the changelog with an end-user readable description
• I assigned this pull request to the correct project board to update the sprint board

Steps to Test or Reproduce

The entire overview and detail page need to be fully tested.

Link to issue

Closes: #385 #437 #450

[Brend-Smits]

I will have a look at this in the coming week. @rubenb994 or @niraymak, could you also have a look please? Would be great to get this PR merged.

[MeesvanStraten]

@Brend-Smits @DaveBouman and I will also review it. Want to have this PR merged before other team members will work on DeX.

[Brend-Smits]

@Brend-Smits @DaveBouman and I will also review it. Want to have this PR merged before other team members will work on DeX.

That's great. I will sit on standby in that case. Let me know if you need a third pair of eyes.