Add timeline selection to visualization editor

[sydp]

This PR adds a timeline selection component to the visualization editor to allow the user to select specific timelines when creating aggregations/charts.

• All tests succeed.
• Unit tests added.
• e2e tests added.
• Documentation updated.

[jkppr]

Overall looking good, thanks for adding those filters.

Please check the comments below.

Additionally, can you add an indicator on what timelines a saved visualization was performed? E.g. looking at this screenshot, it is not clear that the data only comes from the BitsClient timeline if I would not have written it into the title.

[sydp]

Overall looking good, thanks for adding those filters.

Please check the comments below.

Additionally, can you add an indicator on what timelines a saved visualization was performed? E.g. looking at this screenshot, it is not clear that the data only comes from the BitsClient timeline if I would not have written it into the title.

If i understand correctly, we want a separate visual element that displays the underlying timeline being used? Does this have to be in the chart itself or somewhere else in the UI? Perhaps we need to design/mock this further before implementing?

In saying that, imho I think this is best left to the analyst (or the analyzer) creating the chart to set the title value to appropriately reflect what is being displayed. Perhaps an auto-generated (template or GenAI suggested) title based on the field, aggregation and timelines selected could achieve this?

[jkppr]

As discussed, we will tackle the open UX topics in a follow-up PR. For now it is more important to get the Timeline filter in for the next release.