Improve tasklist performance

[lmoesle]

Is your feature request related to a problem? Please describe.

The digiwf tasklist loads all user/group tasks assigned to the user at once. If a user has multiple hundred or thousand tasks assigned, it takes a while for the tasklist to load all tasks from the api.

Describe the solution you'd like

We should refactore the frontend and the task api to not load all tasks at once. Maybe we use api pagination (backend) or another concept to reduce the amount of data.

Describe alternatives you've considered

Alternatively, we could move to a more real time functionality by using websockets and/or graphql to stream the task data to the frontend.

Additional context

Loadtest results: https://git.muenchen.de/digitalisierung/digiwf-load-test/-/pipelines/125870

Priority

Go live of parkausweis managment is in november. Therefore, it would be great if we could fix this issue advance.

[lmoesle]

Solution

• Pagination in the backend
• Frontend sends Page Information to the backend
• We can use Spring Paging und Sorting
• Additional API Endpoints für Paginated Search of User Tasks and Group Tasks
• We stick with a paginated table in the frontend. We don't use infinity scroll

[lmoesle]

Tasks

• Save Page Information in the URL (Issue https://app.zenhub.com/workspaces/digiwf-621f70bf50ea1100120b7e93/issues/it-at-m/digiwf-project/341)
• Paginated Backend Controller for Taskinfo Entities (User Tasks) - Authorization
• Paginated Backend Controller for Taskinfo Entities (Group Tasks)
• Implement Fulltextsearch in the Backend
• Fulltextsearch in the Frontend with Url Parameter that is sent to the backend

[darenegade]

Merged Epic with #338