Refactor UI Code for Screens

[johannaschlimme]

The first implementation of the projects and project page has a lot of code duplications due to using the same UI components and the same CSS styling. There could e.g. be created a new component for the grid list. Please also check how the duplicated code can be reduced. It would be nice to have a universal screen component which can then be used for all screens by only adding the different inputs.

Code from: HealthML/annotation-service#83

• create component for navigation bar (including home and back button as well as possibility to add more buttons)
• create universal screen where only the input needs to be changed (for projects and project page)
• ...?

[johannaschlimme]

Refactor screens using new screen component

• projects page
• project-datasets page
• project-jobs page
• dataset page

Refactor datasets and jobs screens to share a screen and only render different modal components