[GUI] Collector issue for improvement ideas

[tangobravo62]

The following improvements for the GUI are proposed:

1. In list views with (or without) paging, show the total number of objects in the list.
2. In list views (currently only order list): After operation on a list entry, stay on the same list page (currently view returns to first page)
3. In list views add sorting buttons on column headers where appropriate
4. In list views make number of entries shown configurable (as in Workflow list view)
5. In list views, if no records can be found for the given selection, return a meaningful message instead of a cryptic string of technical messages:
6. Add product download button to GUI and download command to CLI.
7. Improve screen size adjustment
8. Add help/info texts for each page
9. Link/integrate the prosEO Wiki, as well as the API reference guide and Javadocs
10. Integrate roles more meaningfully and explain
11. Add user management functionality, e.g. password changing
12. Reorganize some table headers to improve readability
13. Add functionality to manage configurations, e.g. workflow enabling/disabling
14. Add aux data upload functionality
15. Highlight present and missing input files by colour
16. Integrate/link the Grafana Dashboards or show monitoring tables
17. Integrate/link the Kubernetes Dashboard
18. Processing order list and detail view: Order product types ascending by name (in list of output product classes, input product class stop list, input product class filter, output product class parameters), order configured processors by identifier, within parameter lists order parameters by parameter key (unless this is impracticable due to the way new parameters are added)
19. --> add more ideas here

[katharinabassler]

Existing issues: #196, #187, #182, #178, #164, #159, #91

[emelchinger]

Issue #159 is implemented.

[emelchinger]

In order list the sort column and direction, the current page and the selection entries are rememberd in URI and restored during page update or back/ forward page.