Add Observability Visualization to Notebooks

[ps48]

Is your feature request related to a problem? Please describe.
Currently notebooks component only support adding Opensearch Dashboards visualization in a note. Visualizations made using Event analytics cannot be added to notebooks.

Describe the solution you'd like

1. Add functionality to add Observability visualizations to notebooks UI.
2. Modify the Panel-Visualization Container's react component to be flexible enough to be reused.

Describe alternatives you've considered
There are two ways to add Observability visualizations to notebooks:

1. Use the panel grid component and add one visualization in it.
2. Use only the visualization component to be added in notebooks.

Note: Approach "1" makes both type of visualizations have a common pattern, but this comes at a cost of rendering multiple fragments of react-grid-layout. This would make the page heavy to render. Therefore, Going with approach "2" to make the notebooks lightweight.

[ps48]

Merged in #351