Ability to remove Quartz jobs with invalid class name

[gorbunkov]

1. Create several job classes in your application.
2. Manually add several quartz jobs using the "Quartz jobs" screen.
3. Delete one of job classes.
4. Restart the app and open the Quartz Jobs screen

After fixes made in #1551 invalid quartz jobs won't be displayed, but valid jobs will. For invalid job we'll have a warning message in the log.

It would be great if we could see invalid jobs in the Jobs list with some marker indicating that these jobs are invalid. Also users should be able to remove such jobs.

[SergeiAksenov2]

Tested on:
Jmix version: 2.3.999-SNAPSHOT
Jmix Studio plugin version: 2.3.SNAPSHOT6350-233
IntelliJ version: IntelliJ IDEA 2023.3.6 (Community Edition)

Failed - Unexpected error, NPE in entity.getJobState()

Job class is created. And after clicking in button Ok:

there is NPE

In java code:

Logs:
Job NPE log -create new job - JobModelListView_java.txt

Job working without error on the configuration:
Jmix version: 2.2.1
Jmix Studio plugin version: 2.3.SNAPSHOT6350-233
IntelliJ version: IntelliJ IDEA 2023.3.6 (Community Edition)

[SergeiAksenov2]

Tested on Java:

1. Jmix version: 2.3.999-SNAPSHOT
   Jmix Studio plugin version: 2.3.SNAPSHOT6350-233
   IntelliJ version: IntelliJ IDEA 2023.3.6 (Community Edition)
2. Jmix version: 2.3.999-SNAPSHOT
   Jmix Studio plugin version: 2.3.SNAPSHOT6351-241
   IntelliJ version: IntelliJ IDEA 2024.1 (Community Edition)

Description is updated, the job can be deleted: