[ADD] Project: New page about visibility and collaboration

[guga-odoo]

task-4946930

[robodoo]

[auva-odoo]

Thank you for your work @guga-odoo ! Since this feature is relatively minor and, as I understand it, part of the standard project settings, I’d suggest adding it to the Project Management page (as a sub-section of Configuraiton) rather than creating a new one. My review comments reflect that approach (e.g. we won't need to repeat how to access the project settings) but let's discuss this if you see it differently!

[guga-odoo]

Hi @auva-odoo ! I have deleted the page I originally created and added the Collaboration and Visibility section on the Project Management page as you suggested. However I haven't added it as a sub category withing the Settings sub-section, but on the same (heading) level as it makes more sense to me considering how we organized the other sub-sections (scheduling activities and top bar). What do you think?