Fix parentheses property linking

[miiizen]

Resolves: #32445
Resolves: #32420

Parentheses should stay synchronised with the main score.

[davidstephengrant]

@miiizen This is not yet working correctly - the property can still become reversed.

Case 1:

1. Add parentheses to a notehead and switch to the part
   RESULT: The notehead is parenthesised, and the property is now also correct in the panel
2. In the part, select Normal notehead, then switch to the score
   RESULT: The notehead draws without parentheses, but the property shows Notehead with parentheses

Screencast.from.2026-03-04.12-13-02.webm

Case 2:

1. Add parentheses to a note on the top of a pair of linked staves
2. Select the corresponding note on the lower staff
   RESULT: The note draws with parentheses as expected, but property shows Normal notehead.
3. With the note on the lower staff selected, click Notehead with parentheses, then Normal notehead
4. Select the corresponding note on the top staff
   RESULT: The note draws without parentheses as expected, but property shows Notehead with parentheses.

Screencast.from.2026-03-04.12-22-44.webm