pgAdmin 4 commit: Ensure that the password prompt should not be visible

Ensure that the password prompt should not be visible if the database server is in trust authentication mode. Fixes
#2813

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=4de6b93ba80fd9326cd4dd8801cb21158e6c4f84
Author: Murtuza Zabuawala <murtuza.zabuawala@enterprisedb.com>

Modified Files
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docs/en_US/release_notes_4_21.rst                  |  1 +
web/migrations/versions/d39482714a2e_.py           | 47 +++++++++++++++++++++
.../browser/server_groups/servers/__init__.py      | 32 +++++++++------
.../server_groups/servers/tests/test_server_add.py | 48 +++++++++++++++++++++-
web/pgadmin/model/__init__.py                      |  5 +++
5 files changed, 120 insertions(+), 13 deletions(-)