Fix matching of jsClassProperty without an initial value

[ohcibi]

Given the following code

class Foo {
  bar;

  baz = 'biz';
}

The baz is properly matched as a jsClassProperty but bar is jsClassBody. The regex for jsClassPropertywas requiring the=that followed the property name. The changes allow value less properties by allowing either;or=` to follow the name.

jsClassPropertyComputed was not affected since that is matched by using the delimiters [] and
that works regardless of an initial value. But I noticed that for properties that have no semicolons
then the matching does not work for property values as well. I don't know if the recent spec
actually requires semicolons, so I didn't add it yet. But I would add it if class properties without
semicolons are still allowed.

[amadeus]

Thanks for the PR!