Update MS background layers using GS OSM ones

[tdipisa]

Description

By default the MS viewer should provide GeoSolutions OSM background (see this demo map). The list of current background should be also reviewed to remove unnecessary ones (eg. OpenTopoMap and NASAGIBS Night 2012).

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe: configuration update for background layers

Other useful information

[ElenaGallo]

@tdipisa I noticed that when opening a new map, the OSM Bright background is highlighted in the background selector but OSM is visible in the viewer

backgound.mp4

[tdipisa]

@ElenaGallo the pending PR here already handle this fix. Thank you.

[ElenaGallo]

@tdipisa with the new default background, when 3D mode is activated, for the first time, the background is not visible.

backgound_on_3D.mp4

[tdipisa]

@ElenaGallo I don't know if it is related. I will ask for a check, thank you.

[tdipisa]

@ElenaGallo can you please open a new dedicate issue for this?

[ElenaGallo]

@tdipisa The new issue is: #9464

[tdipisa]

Waiting for GS MAPS update before proceeding with the backport.

[tdipisa]

This will land directly in 2024.01.00. GS MAPS update scheduled during February with @randomorder.