Menu Refactoring of Message Module[#2601]

Message Module Menu Refactoring
Smtp testing correction with default value for task
#2601 removed all batch emails menu
Merge branch 'dev' of github.com:axelor/axelor-business-suite into dev
Merge branch 'pdh-axelor-dev' into dev
#2601 setting Default MediaType of Message-Form on Menu Click
Anomaly #2624 Modified report query
Merge branch 'pdh-axelor-dev' into dev
SMTP testing and message sending flow improvements