Add static doc cluster render

[adamocarolli]

Description

Add document cluster renderer.

Changes

• Pull document cluster files from minio.
• Process document cluster files into groups with centroids. Colouring is determined by associated group and hierarchical cluster level of the group. Polygons are computed around groups and rendered on Grafer as edges.
• Update Grafer library from v3.0 to v3.4. Resolve typing errors from update.
• On document click reveal side-panel drill-down to display document artifacts/metadata.

Considerations

• Document cluster processing is currently done on the client. This should be moved to an offline pipeline that stores the results. However, for rapid development we may want to keep the processing on client until our document clustering visualization stabilizes.

Testing

• Ensure to yarn install before testing. Document Clustering view can be found at: http://localhost:8090/#/knowledge/docsClusters

Artifacts

Contributors:

• @mj3cheun

[RosaRomeroGomez]

I also noticed that the Show more link in the Drilldown panel doesn't work when you click on it.

Anyways, we can move all these points to a ticket and start addressing them when possible.

[adamocarolli]

It works well and looks good!

Here are some minor issues that are out of the scope of this PR, but to keep a record:

• BGraph and Grafer are not typed.
• Scrolling up and down on Chrome slides the whole page.
• Opening/closing the left panel makes grafer stutter.
• Because of the considerable work done in the browser instead of a server (as Adamo mentioned), the app is completely frozen, even the loading component.
• The closing button on the left panel is hidden by its title.
• the search bar does not work.
• The document counter under the search bar is hardcoded (176K.)
• Zooming in and out inside the cluster makes some clusters name appears with a nice animation. But this animation is tied to the scroll position and can be left in an in-between state, which makes them unreadable. (This is probably best left to Dario but if I have time I should get to know Grafer more)

All very good points! I've bolded the ones that I'll be working on/have been working on.