Add tooltip for truncated property field labels

[avvvvve]

This is a follow-up from related issues:

• Wrap text in InspectorPropertyViews (#29972) #31871 let property field labels occupy two lines instead of just one
• Truncated properties labels provide no way to read the full title #29972 (closed to replace with this one)

Problem

In certain translations, it might be possible that a properties field label is very long. Now that we allow these labels to fit on two lines, it's rare but possible that they might be even longer. They get automatically truncated with an ellipses but the user has no way to read the rest of the label.

Solution

When hovering over a label for a field that has truncation, we should show a tooltip displaying the full name of the property.

[t-stephens]

Could I be assigned to this?

[avvvvve]

@t-stephens done!

[mathesoncalum]

Before this is tackled I think there needs to be a more general investigation/discussion about this because the problem isn't isolated to property fields. For example #27891 is the same problem but for instrument descriptions.

The solution might even belong in StyledTextLabel or something like that.