remove code to return to feature list and disable leaving list order warning popup & improve popup readability

fix filters display, filter route for feature type & prevent opening feature browsing on other pages

emptying selectForDeletion to enable adding event listener at feature edition straight aftercreation

add toggle snap, for edit and creation, fix edit button activated at edit page opening & avoid popup on feature being created

disable adding feature or editing geometry for multi geometry feature types & add icons on feature type details

avoid overiding not modified custo fields & display info message if only one feature selected for edition