pgAdmin 4 commit: Ensure drag/drop from the treeview works as expected

Ensure drag/drop from the treeview works as expected on Firefox. Fixes #4429

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=0aa18fd466dbadf040152965781ae5033f4a26af
Author: Aditya Toshniwal <aditya.toshniwal@enterprisedb.com>

Modified Files
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docs/en_US/release_notes_4_11.rst                  | 1 +
web/pgadmin/static/js/tree/tree.js                 | 4 ++++
web/pgadmin/tools/sqleditor/static/js/sqleditor.js | 8 +++++++-
3 files changed, 12 insertions(+), 1 deletion(-)