[pgadmin-hackers] pgAdmin 4 commit: Fix various issues with pgAgent job steps andschedul

Fix various issues with pgAgent job steps and schedules:

1) Error on clicking SQL panel when Schedule OR Step node is selected in browser. Fixes #1888

2) Error while dropping Schedule OR Step node. Fixes #1889

3) Newly created Schedule/Step node was not displaying in browser. Fixes #1890

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=b149fe371e56d8b11c76bd4dc4f54eecd5cba8f1
Author: Murtuza Zabuawala <murtuza.zabuawala@enterprisedb.com>

Modified Files
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.../server_groups/servers/pgagent/__init__.py      |   2 +-
.../servers/pgagent/schedules/__init__.py          | 192 +++++++++++++++------
.../servers/pgagent/steps/__init__.py              | 110 +++++++++---
.../steps/templates/pga_jobstep/js/pga_jobstep.js  |   2 +-
4 files changed, 227 insertions(+), 79 deletions(-)