pgAdmin 4 commit: Allow configuration options to be set from the enviro

Allow configuration options to be set from the environment in the container distribution. Fixes #4651

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=c76b30e35310dbbb1d1e0706cab9af95ee39c148

Modified Files
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docs/en_US/config_py.rst            | 34 +++++++++++++++++++++++++
docs/en_US/container_deployment.rst | 49 +++++++++++++++++++++++++++++--------
docs/en_US/deployment.rst           |  5 ++--
docs/en_US/desktop_deployment.rst   | 26 ++------------------
docs/en_US/release_notes_4_13.rst   |  1 +
docs/en_US/server_deployment.rst    | 25 ++++++-------------
pkg/docker/Dockerfile               |  1 -
pkg/docker/config_distro.py         |  4 ---
pkg/docker/entrypoint.sh            | 18 ++++++++++++++
9 files changed, 104 insertions(+), 59 deletions(-)