pgAdmin 4 commit: Update docs to more accurately reflect theSERVER_MOD

Update docs to more accurately reflect the SERVER_MODE config requirements.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=5c016f0993fb557052cce7e11cd6ad818bd7c3a3

Modified Files
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docs/en_US/desktop_deployment.rst | 39 ++++++++++-----------------------------
docs/en_US/server_deployment.rst  | 18 ++++++++----------
2 files changed, 18 insertions(+), 39 deletions(-)