[enhancement]: visualize - add "loading" + add "return" #1852
Description
When using "visualize" for large searches, e.g. 1000 and more
It takes a while to load the data on the map and users sometimes leave the page as they think something went wrong. It is possible to add a "loading" message or symbol instead of the black screen only? Colleagues suggested to add a status bar, to be able to follow the loading process.
Once in the visualize mode; you can return to your search result by clicking "Esc", but this is also not that intuitive for most users. So there should be some aid helping them to return / exit visualize mode. Would it be possible to OR 1) add or a simple statement in the top of the screen (e.g. next to the displaying X of X records): "Press the Esc key on your keyboard to exit the map viewer" OR add a "X" button in the top right corner in the grey area next to displaying X of X records that they can click to return to the search result they came from?
