pgAdmin 4 commit: Fix an XSS issue when username contains XSS vulnerabl

Fix an XSS issue when username contains XSS vulnerable text. Fixes #4386

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=c39d257bf65b4c2c8f07901f4a909708c771775c
Author: Aditya Toshniwal <aditya.toshniwal@enterprisedb.com>

Modified Files
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docs/en_US/release_notes_4_9.rst                   |  3 ++-
web/pgadmin/tools/datagrid/static/js/datagrid.js   | 23 ++++------------------
...{get_panel_title.js => datagrid_panel_title.js} | 22 +++++++++++++++++++++
web/pgadmin/tools/datagrid/static/js/show_data.js  |  2 +-
.../tools/datagrid/static/js/show_query_tool.js    |  2 +-
web/pgadmin/tools/sqleditor/static/js/sqleditor.js | 10 ++++------
.../javascript/datagrid/get_panel_title_spec.js    |  2 +-
7 files changed, 35 insertions(+), 29 deletions(-)