[Feature] Show FE commit hash on proc

[ccoffline]

Proposed changes

as #4521

This commit adds git commit message of FE to the system page, just like BE.

In addition, It shows commit message on mysql connection.

Types of changes

• [] Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [] Documentation Update (if none of the other choices apply)
• [] Code refactor (Modify the code structure, format the code, etc...)

Checklist

• [] I have create an issue on (Fix #ISSUE), and have described the bug/feature there in detail
• Compiling and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• [] If this change need a document change, I have updated the document
• Any dependent changes have been merged

[morningman]

LGTM