Adjust how user data from library is shown

  1. show the Nutzernummer (library ID)
  2. Instead of "31. Dez. 9999", "unbefristet" should be shown
  3. "Postleitzahl" without brackets? in PAIA (not by us)
  4. short location text? in PAIA (not by us)
Edited by Jovan Krunić