Fix: semicolon-less style in lines-between-class-members (refs #14857)

[mdjermanovic]

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What is the purpose of this pull request? (put an "X" next to an item)

[ ] Documentation update
[x] Bug fix (template)
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refs #14857, fixes #14591 (comment)

What changes did you make? (Give an overview)

Fixed the lines-between-class-members to support semicolon-less style.

For example:

/* eslint lines-between-class-members: ["error", "always"]*/

class C {
  a // this is ok, although this field technically ends with the `;` below
  
  ;b

  c // this isn't ok either way, but the linebreak will be inserted here, not after `;`
  ;d
}

This matches the logic in padding-line-between-statements (Demo)

Is there anything you'd like reviewers to focus on?

[nzakas]

LGTM