Context:
The current API for the duration filter does not allow to edit all the created filters at once, Therefore, it makes sense to group all the defined flow nodes from the duration modal inside one Flow Node duration filter.

AT:

• Update the filter endpoint to following format

{
  type: 'flowNodeDuration',
  data: {
    [FlowNodeId]: {
      operator: ">", // or <
      value: 12,
      unit: "days"
    },
    ...
  }
}

• the report filter rest api documentation is updated