pgAdmin 4 commit: Allow the UI layout to be fully locked or to prevent

Allow the UI layout to be fully locked or to prevent docking changes. Fixes #2653

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=2dd075161d811c0db1e502d1dbc92627a2bec0f1

Modified Files
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docs/en_US/images/file_menu.png | Bin 36845 -> 54700 bytes
docs/en_US/images/preferences_browser_display.png | Bin 93821 -> 172233 bytes
docs/en_US/menu_bar.rst | 3 +
docs/en_US/preferences.rst | 21 ++-
docs/en_US/release_notes_4_8.rst | 6 +-
web/package.json | 2 +-
web/pgadmin/browser/__init__.py | 53 ++++++-
.../browser/register_browser_preferences.py | 20 +++
web/pgadmin/browser/static/js/browser.js | 66 +++------
web/pgadmin/browser/static/js/layout.js | 161 +++++++++++++++++++++
web/pgadmin/browser/static/js/menu.js | 72 ++++++---
web/pgadmin/browser/templates/browser/js/utils.js | 40 +++--
web/pgadmin/preferences/__init__.py | 2 +-
web/pgadmin/preferences/static/js/preferences.js | 2 +
web/pgadmin/settings/__init__.py | 2 +-
web/pgadmin/static/js/backform.pgadmin.js | 54 +++++++
web/pgadmin/static/scss/_bootstrap.overrides.scss | 5 +
.../tools/maintenance/static/js/maintenance.js | 29 +---
.../maintenance/static/scss/_maintenance.scss | 4 -
web/pgadmin/utils/preferences.py | 2 +-
web/regression/javascript/browser/layout_spec.js | 109 ++++++++++++++
web/webpack.shim.js | 1 +
web/webpack.test.config.js | 2 +
web/yarn.lock | 4 +-
24 files changed, 537 insertions(+), 123 deletions(-)