[pgAdmin4][Patch]: RM #3933 Error dropping database pop up messagedisplayed if user try to drop any database with Arabic character with nonsuper user

Hi Hackers,

Attached is the patch to fix RM #3933 "Error dropping database pop up message displayed if user try to drop any database with Arabic character with non super user". There is an exception in the logging system for Arabic characters. 

I have read https://docs.python.org/2/library/logging.html#logging.Handler.handleError and as part of fix set logging.raiseException = False

Please review it.
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