As a project manager

I want to report my project status to the project stakeholder using the traffic light semantic,

so that I do not have to do this manually in another tool or document.

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### Acceptance criteria

* Project status is an attribute of a project
* There are four status:
* grey: undefined
* Green: On track
* Amber: At risk
* Red: Off track
* There is a status summary text field
* Inplace editing: no need to switch to the project administration Begin of the deletion
* Other places:
* project list table
* project settings
* The status as well as the project summary is editable on the project settings pageEnd of the deletion

### Visuals Begin of the deletion (tbdEnd of the deletion

Begin of the insertionEnd of the insertion Begin of the deletion End of the deletion

### Notes

* Requires the projects api to also have an update, schema and form end point (#18809)
* Add status & status summary to the projects API (representation/update/create/forms/schema).
* Add a project status index and show end point to the API. Begin of the insertion

### Out of scope of this epic

* Showing the project status in the project listEnd of the insertion