Update docs to remind users to "scroll left" when zoomed to full extent on the map

[dbuscombe-usgs]

Issue: when a user zooms out far enough, they are confronted with multiple versions of the world map. When a ROI is placed on a 'right-hand world', the pre-existing reference shorelines do not load on the map. They do, however, if a 'left-hand' world is used.

Possible solution 1: Can a limit be imposed on the level of zoom out, in order to prevent the 'multiple worlds' effect?

Fallback solution 1: Update the docs so users are advised to pan left, and use the left-hand version of the world map?

[2320sharon]

I was hoping that disabling the infinite map was as easy as setting world_copy_jump=False, but it seems this parameter is already False and changing it to True or False seems to do nothing...
https://ipyleaflet.readthedocs.io/en/latest/map_and_basemaps/map.html#:~:text=int%2C%20default%2015-,world_copy_jump,-%23

[2320sharon]

The goal to make it so that only one copy of the world is shown to the user. Not two copies

[dbuscombe-usgs]

I think we need
world_copy_jump = True

[dbuscombe-usgs]

I think that will not prevent the multiple worlds, but perhaps it will allow our vector features to show up on any "right hand" world

[2320sharon]

I'm trying that out right now

[dbuscombe-usgs]

Another idea would be to use fit_bounds using the extent of the world in the format [[south, west], [north, east]]

i.e. [[-90, -180], [90, 180]].

?

[2320sharon]

I tried the fit bounds idea earlier but its basically a glorified zoom to zone. doesn't actually limit the map

[2320sharon]

The good news is the world_copy_jump = True worked
. I scrolled to each side of the world and it worked. I'm gong to test this a few times before I call this issue closed.

[dbuscombe-usgs]

Great!

[2320sharon]

Looks like its working. I'm so glad that works.
I'll release this fix as part of 0.0.73dev4