pgAdmin 4 commit: Properly report errors when debugging cannot bestart

Properly report errors when debugging cannot be started. Fixes #3723

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=ef68cae1f1cb23d2ba30c33f693e78cfaa838609
Author: Akshay Joshi <akshay.joshi@enterprisedb.com>

Modified Files
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docs/en_US/release_notes_3_6.rst               |  1 +
web/pgadmin/tools/debugger/static/js/direct.js | 34 ++++++++++++++++++--------
2 files changed, 25 insertions(+), 10 deletions(-)