[JENKINS-56934] fix the 'new view' link to correctly work with folders (#5377)

* [JENKINS-56934] fix the 'new view' link to correctly work with folders

* [JENKINS-56934] check permission on the correct item

* [JENKINS-56934] update and simplify the test

* [JENKINS-56934] check the owner is modifiable and refactor

* [JENKINS-56934] correct unit test, and add new test for non modifiable owner

(cherry picked from commit c4e0291c)