Fix #271636: Translate notenames in piano role editor and status bar

[Jojo-Schmitz]

Resolves
https://musescore.org/en/node/271636

including the piano tool keyboard tooltips, also for piano roll editor, there including the strings for drumsets too.

[anatoly-os]

Changing translatable strings is up to 3.6

[Jojo-Schmitz]

@anatoly-os : please recheck/reconsider: There's no new or changed translatable strings, it just picks on existing translations!

[anatoly-os]

@Jojo-Schmitz
I don't see InspectorAmbitus string on Transifex, but Inspector Ambitus.
I see neither utils nor drumset strings as well.

What do I miss?

[Jojo-Schmitz]

These are not the strings, but their context. Causing the translation of the actual (and existing unchanged) string getting reused here.
Again: this PR does not add or change any existing string!

[Jojo-Schmitz]

Again: while this PR indeed does change some strings (namely PianoKeyboard::pitchNames[] and pitchNames[]), it does not change or add any translatable strings, it instead just picks up existing translations, so I see no reason to not include it in 3.5.1.