)

fix the limitation of dots effect wouldn't work correctly for
ligature-based languages cuz connected letters cannot be rendered as
individual dots.

before it was not worth the fix for the theme only now after the new
typed effect feat #7360 i think this needed.

* introduces a small helper that breaks ligatures only after a word is
finished, allowing the dots effect to render correctly while keeping
ligatures intact during typing.

* runs only when needed (on word completion or when the typed effect is
switched to dots) and avoids any continuous checks or performance
overhead.

related #6472