pgAdmin 4 commit: Support keyboard navigation in the debugger. Fixes#2

Support keyboard navigation in the debugger. Fixes #2897

In passing, fix injection of variable values. Fixes #2981

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=0e41b3364b3de80381ae7c6ad052087ac0eae6a4
Author: Murtuza Zabuawala <murtuza.zabuawala@enterprisedb.com>

Modified Files
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docs/en_US/keyboard_shortcuts.rst                  |  40 +++++
web/pgadmin/static/js/keyboard_shortcuts.js        | 119 +++++++++++++
web/pgadmin/tools/debugger/__init__.py             |   6 +
.../tools/debugger/static/js/debugger_ui.js        |  33 ++--
web/pgadmin/tools/debugger/static/js/direct.js     | 187 ++++++++++++++-------
.../tools/debugger/templates/debugger/direct.html  |  83 +++++----
.../javascript/common_keyboard_shortcuts_spec.js   |  50 ++++++
7 files changed, 409 insertions(+), 109 deletions(-)