pgAdmin 4 commit: Grey the SQL panel in edit data mode. Fixes #1423

Grey the SQL panel in edit data mode. Fixes #1423

Introduced a new class 'cm_disabled' with css property background-color to '#EEEEE'
Query tool in edit mode, add the class 'cm_disabled' to set background color to dark and set the cursor property to
'nocursor'to disable editor. 
Increased the query tool title padding to fix the issue of whitespace below the title.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=1bd27b847be76e0aecfa29c1e9d9d334dce0350c
Author: Surinder Kumar <surinder.kumar@enterprisedb.com>

Modified Files
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web/pgadmin/static/css/overrides.css                            | 5 +++++
web/pgadmin/tools/sqleditor/static/css/sqleditor.css            | 2 +-
web/pgadmin/tools/sqleditor/templates/sqleditor/js/sqleditor.js | 7 ++++++-
3 files changed, 12 insertions(+), 2 deletions(-)