[Feature] Use Prettier for code-formating.

[alexcui03]

Description

User Prettier for code-formating.

The following code:

class CLASS_NAME extends SUPER_CLASS implements INTERFACE_1, INTERFACE_2 {
  // Class Definitions ...
}

should be formatted as following when the first line is too long:

class CLASS_NAME
  extends SUPER_CLASS
  implements INTERFACE_1, INTERFACE_2
{
  // Class Definitions ...
}

Currently, eslint cannot doing such brace rules, but Prettier can do it well.

Proposed Changes

Additional Context