Output error if no summary can be created

[koppor]

Log file:

2024-08-04 13:14:01 [pool-2-thread-3] org.jabref.logic.ai.summarization.GenerateSummaryTask.generateSummary()
ERROR: Could not find path for a linked file: Tan_2021 - The Health Effects of Chocolate and Cocoa_ a Systematic Review.pdf
2024-08-04 13:14:01 [pool-2-thread-3] org.jabref.logic.ai.summarization.GenerateSummaryTask.summarizeAll()
ERROR: No summary can be generated for entry

• [x] Please output the citation key - after one hour, the user cannot remember which entry caused the error

The UI still shows "Please wait":

• [x] UI should show the error.

[InAnYan]

Hmm, should be fixed

[koppor]

Yes: