Improve articulation placement

No source files or tests are named. Start by tracing MuseScore's articulation and slur placement behavior, then compare the documented examples and prior art; done would require agreed automatic placement rules for accents, other articulation signs, tenuto, staccato, and Schoenberg stress symbols.

Your idea

1. Allow automatic adjustment of accents to the slurs in order to avoid large differences in the level of positioning.
   First of all, this applies to those cases when, in combination with a slur, accents can "jump" one after another or are too far from the note. For example:
   
   The same applies to signs such as "+" (closed), "o" (open), harmonics, etc. Example:
   
2. As you know, the accent marcato and staccatissimo should usually be placed outside the staff. I suggest making some exceptions and allowing automatic approximation of such articulations to the notes for the greatest legibility. Example:
   
3. As you know, such articulations as tenuto and staccato are not placed between the ledger lines. Instead, they are placed between the first and second lines of the staff. However, for tenuto, this value should be even greater so that the eye does not visually confuse them with ledger lines:
   
   In Dorico, by the way, this practice is set by default.
4. Stress symbols introduced by Schoenberg. As you know, these symbols should be placed above the staff, except in double-stemmed writing, and outside any articulation marks. But for unknown reasons, MuseScore Studio currently places them under the staff, which is incorrect.

https://github.com/user-attachments/assets/883dc130-946b-48a7-bffe-6ee91d8ad5d4

Problem to be solved

Although accents should be placed outside the staff, in some cases it would still be wiser to make exceptions. At the moment, the user has the opportunity to adjust such things manually, but this takes time and is a workaround, as well as has side effects.

For example, take a look at this:

It looks decent, but only after manual adjustments.
And here's exactly how MuseScore Studio handles it:

By the way, it could also be done like this:

Prior art

Dorico has a setting that allows you to place accents inside the slurs:

Dorico also places tenuto much further away from the ledger lines:

Additional context

No response

Checklist

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