Fix bread crumbs

[gdlcf88]

We are using the bread crumbs in the wrong way.

For example, the product management page of the EShop.Products module

    PageLayout.Content.BreadCrumb.Add(L["Menu:Product"].Value);
    PageLayout.Content.MenuItemName = ProductsMenus.Product;

It should be

    PageLayout.Content.BreadCrumb.Add(L["Menu:EShop"].Value);
    PageLayout.Content.MenuItemName = ProductsMenus.Product;

or

    PageLayout.Content.BreadCrumb.Add(L["Menu:EShop"].Value);
    PageLayout.Content.BreadCrumb.Add(L["Menu:ProductManagement"].Value);
    PageLayout.Content.MenuItemName = ProductsMenus.Product;

We should also check the generation of the AbpHelper.