needs to put lg comments below lg name declaration in form dialog generated lg files

[yeze322]

Describe the bug

Related to #4822 .

Before the fix, we need to make sure form dialog cli put lg comments below lg name declarations.

# arrivalDate_Show
>> Show value of 'arrivalDate' property
- ${arrivalDate_Name()}: ${arrivalDate_Value($arrivalDate)}

Rather than

>> Show value of 'arrivalDate' property
# arrivalDate_Show
- ${arrivalDate_Name()}: ${arrivalDate_Value($arrivalDate)}

Version

Browser

• Electron distribution
• Chrome
• Safari
• Firefox
• Edge

OS

• macOS
• Windows
• Ubuntu

To Reproduce

Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

Screenshots

Additional context

We can transfer this issue to Botbuilder-Samples repo after it's triaged.

[hatpick]

What do you think @chrimc62