fix: indent non-block switch rule bodies with leading comments

[jtkiesel]

What changed with this PR:

Non-block switch rule bodies with leading comments are now indented properly.

Example

Input

class Example {

  void example() {
    switch (a) {
      case b ->
        // comment
        c;
      case Dd d ->
        // comment
        e;
      case f ->
        // comment
        throw new RuntimeException();
    }
  }
}

Output

class Example {

  void switchRulesWithComments() {
    switch (a) {
      case b ->
        // comment
        c;
      case Dd d ->
        // comment
        e;
      case f ->
        // comment
        throw new RuntimeException();
    }
  }
}

Relative issues or prs:

Closes #768