Use Namespace#full_path instead of Namespace#path

app/helpers/namespaces_helper.rb

app/helpers/submodule_helper.rb

app/models/merge_request.rb

app/models/project.rb

app/models/project_services/drone_ci_service.rb

app/services/projects/transfer_service.rb

app/views/admin/dashboard/index.html.haml

app/views/import/base/unauthorized.js.haml

app/views/projects/edit.html.haml

app/views/projects/group_links/_index.html.haml

app/views/projects/pages_domains/show.html.haml

app/views/shared/members/_group.html.haml

doc/api/projects.md

lib/backup/repository.rb

lib/gitlab/google_code_import/importer.rb

lib/gitlab/import_export.rb

lib/gitlab/import_export/importer.rb

lib/gitlab/shell.rb

spec/lib/gitlab/import_export/import_export_spec.rb

spec/models/project_spec.rb