✅ Dashboards: Create Charts with Multiple Datasets (1. Iteration)

[sosiology]

User Story
As a user, I can create a dashboard consisting of multiple charts based on 2 different data sets and connect them with a global filter.

Demarcation
In this step we will work with the existing dashboard layouts (vertical and vertical) that are already available in visualize.

DoD
In Visualize, a dashboard consisting of multiple charts based on 2 different data sets can be created and linked to a global filter.

[KerstinFaye]

@ptbrowne I tested adding a chart based on a different dataset:

1. Add chart
2. Select different dataset
3. Preview table
4. I closed the search overlay with the close-icon to cancel that process
5. I go again to add a chart based on a different dataset
6. The overlay shows the data preview table to the chart that I selected in the process before

---> Could we achieve that the process of selecting a dataset is canceled by closing the overlay, meaning when I selected the next time a dataset that I don't end up directly at the preview?

Video of the problem

[ptbrowne]

Yes sure, I fix this in #1541, it should be there soon.

[KerstinFaye]

Ill move my feedback to that PR

[sosiology]

Thanks for the fix @ptbrowne and for suggesting the improvement @KerstinFaye
Tested the improved behaviour on TEST and it LGTM!