pgAdmin 4 commit: Refuse password changes (and tell the user) if theno

Refuse password changes (and tell the user) if the notification email cannot be sent. Fixes #2892

Branch
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WEBPACK_DEVEL2

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=643d036be72f7f7554a2fed2e41b21dcdd1a5d37
Author: Harshal Dhumal <harshal.dhumal@enterprisedb.com>

Modified Files
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web/pgadmin/__init__.py                            |  29 +--
web/pgadmin/browser/__init__.py                    | 208 ++++++++++++++++++++-
web/pgadmin/browser/templates/browser/index.html   |   2 +-
.../templates/security/change_password.html        |   2 +-
.../templates/security/email/change_notice.html    |   4 +
.../templates/security/email/change_notice.txt     |   5 +
.../templates/security/forgot_password.html        |   2 +-
web/pgadmin/templates/security/login_user.html     |   2 +-
web/pgadmin/templates/security/reset_password.html |   2 +-
9 files changed, 235 insertions(+), 21 deletions(-)