pgAdmin 4 commit: Fixed some accessibility issues:

Fixed some accessibility issues:
1) Screen reader to read elements in radio modern control.
2) Aria-label additions at few missing places.
3) Radiocontrol to have different ids for each option.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=6586be5158f49b76d0d578ca3642a5af42e8d5b3
Author: Ganesh Jaybhay <ganesh.jaybhay@enterprisedb.com>

Modified Files
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web/pgadmin/static/js/backform.pgadmin.js      | 9 +++++----
web/pgadmin/static/js/backgrid.pgadmin.js      | 8 ++++++--
web/pgadmin/static/vendor/backform/backform.js | 4 ++--
3 files changed, 13 insertions(+), 8 deletions(-)