pgAdmin 4 commit: 1) Preserve the settings set by the user in the impor

1) Preserve the settings set by the user in the import/export data dialog. Fixes #7428
2) Fixed the JSON editor issue of hiding the first record. Fixes #7520

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=8f2bda23090e7280da969abe82e77be62cb134ec
Author: Yogesh Mahajan <yogesh(dot)mahajan(at)enterprisedb(dot)com>

Modified Files
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docs/en_US/images/import_export_columns.png | Bin 229848 -> 153297 bytes
docs/en_US/images/import_export_general.png | Bin 0 -> 84638 bytes
docs/en_US/images/import_export_miscellaneous.png | Bin 244522 -> 0 bytes
docs/en_US/images/import_export_options.png | Bin 83801 -> 289167 bytes
docs/en_US/import_export_data.rst | 46 ++-
docs/en_US/release_notes_6_12.rst | 2 +
web/pgadmin/browser/static/js/utility_view.jsx | 24 ++
.../feature_tests/query_tool_journey_test.py | 13 +-
web/pgadmin/feature_tests/view_data_dml_queries.py | 136 ++++---
web/pgadmin/misc/cloud/static/js/azure.js | 2 +-
web/pgadmin/tools/import_export/__init__.py | 47 ++-
.../tools/import_export/static/js/import_export.js | 23 +-
.../import_export/static/js/import_export.ui.js | 406 ++++++++++-----------
.../templates/import_export/sql/cmd.sql | 19 +-
.../js/components/QueryToolDataGrid/Editors.jsx | 2 +-
web/regression/feature_utils/pgadmin_page.py | 8 +-
16 files changed, 388 insertions(+), 340 deletions(-)