pgAdmin 4 commit: Fixed an issue where changing the columns in the exis

Fixed an issue where changing the columns in the existing view throws an error. Fixes #5053

PostgreSQL doesn't allow to change the view columns. So the view should be dropped first
and then recreate it and also the user will get a warning first.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=f4607885e1ed975cfb345b1c52ea2be6084c28d4
Author: Khushboo Vashi <khushboo.vashi@enterprisedb.com>

Modified Files
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docs/en_US/release_notes_4_21.rst                  |  1 +
.../servers/databases/schemas/views/__init__.py    | 50 ++++++++++++++++------
.../databases/schemas/views/static/js/view.js      | 27 +++++++++++-
3 files changed, 65 insertions(+), 13 deletions(-)