Align assets structure between core and downstream project

[allyoucanmap]

Description

At the moment we have misalignment between the assets location in core and project that could cause problem in project creation and updates. These are the location of assets folders:

• core product/assets/
• project assets/

Here the needed changes:

• Move the assets folder outside the product folder
• Review how we set thumbnail for backgrounds
• Review location of annotations symbols
• Review project creation script to ensure assets, including css and img are correctly setup

If we align the assets location we will reduce the needs of custom configuration

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

• Downstream Projects

Other useful information