pgAdmin 4 commit: Fixed feature test cases after react porting.

Fixed feature test cases after react porting.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=9479f0e632d278e56ad0d63ace2b6976e81b250b
Author: Yogesh Mahajan <yogesh(dot)mahajan(at)enterprisedb(dot)com>

Modified Files
--------------
web/pgadmin/feature_tests/browser_tool_bar_test.py | 28 +-
.../copy_selected_query_results_feature_test.py | 9 +-
web/pgadmin/feature_tests/file_manager_test.py | 6 +-
.../feature_tests/keyboard_shortcut_test.py | 4 +-
.../feature_tests/pg_datatype_validation_test.py | 14 +-
.../pg_utilities_backup_restore_test.py | 6 +-
.../feature_tests/pg_utilities_maintenance_test.py | 36 +-
.../query_tool_auto_complete_tests.py | 13 +-
.../feature_tests/query_tool_journey_test.py | 27 +-
web/pgadmin/feature_tests/query_tool_tests.py | 22 +-
.../feature_tests/table_ddl_feature_test.py | 15 +-
.../feature_tests/test_copy_sql_to_query_tool.py | 18 +-
web/pgadmin/feature_tests/view_data_dml_queries.py | 37 +-
.../xss_checks_panels_and_query_tool_test.py | 33 +-
.../xss_checks_pgadmin_debugger_test.py | 16 +-
.../feature_tests/xss_checks_roles_control_test.py | 30 +-
web/regression/feature_utils/locators.py | 13 +-
web/regression/feature_utils/pgadmin_page.py | 917 +++++++++++----------
web/regression/feature_utils/tree_area_locators.py | 318 ++++---
web/regression/python_test_utils/test_utils.py | 26 +
web/regression/requirements.txt | 2 +-
web/regression/runtests.py | 4 +-
22 files changed, 918 insertions(+), 676 deletions(-)