pgAdmin 4 commit: Cleanup some code smells identified by SonarQube.

Cleanup some code smells identified by SonarQube.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=85e89c869a9f7ac0ad53b3bf459b6b4658ec7ffe

Modified Files
--------------
web/migrations/versions/09d53fca90c7_.py | 4 -
web/package.json | 4 +-
web/pgadmin/authenticate/registry.py | 2 +-
.../server_groups/servers/databases/__init__.py | 2 -
.../databases/casts/tests/test_cast_get_node.py | 11 +-
.../foreign_servers/__init__.py | 1 -
.../databases/schemas/fts_dictionaries/__init__.py | 2 -
.../databases/schemas/fts_parsers/__init__.py | 1 -
.../databases/schemas/fts_templates/__init__.py | 2 -
.../schemas/functions/tests/test_function_add.py | 2 +-
.../schemas/functions/tests/test_function_put.py | 2 +-
.../schemas/packages/edbfuncs/__init__.py | 2 -
.../edbfuncs/tests/test_package_edbfuncs_get.py | 3 +-
.../servers/databases/schemas/tables/__init__.py | 2 -
.../constraints/foreign_key/tests/__init__.py | 7 -
.../constraints/index_constraint/tests/__init__.py | 8 -
.../schemas/tests/test_schema_delete_multiple.py | 2 -
.../servers/databases/schemas/views/tests/utils.py | 1 -
.../server_groups/servers/roles/__init__.py | 1 -
web/pgadmin/browser/static/js/browser.js | 2 +-
web/pgadmin/browser/static/js/keyboard.js | 2 +-
web/pgadmin/browser/static/js/node.js | 5 +-
web/pgadmin/browser/tests/test_internal_version.py | 2 -
web/yarn.lock | 1649 ++++++++++----------
24 files changed, 805 insertions(+), 914 deletions(-)