UI inconsistency on the main window upon library closure

[matteofg]

JabRef version

6.0-alpha2

Operating system

macOS

Details on version and operating system

No response

Checked with the latest development build (copy version output from About dialog)

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

When the only active library is closed:

• the window title still shows the library name;
• the entry editor remains open instead of closing automatically

Appendix

No response