🐛 TooltipThemeData.waitDuration and others not affected by given widget style

[jacksonb-cs]

Describe the bug
Tooltips are not using some values given by Tooltip.style. The reason for this is because the affected attributes are incorrectly referencing theme data obtained directly from the widget's BuildContext without merging the widget's given style.

To Reproduce
Steps to reproduce the behavior:

1. Create a tooltip and give it a waitDuration of zero.
2. Observe it still takes the default duration of one second to appear.

Expected behavior
Consistently use the result of merging the inherited theme data with the widget's given style.

[jacksonb-cs]

I have a PR on the way, just forgot to update the changelog.

[WinXaito]

Facing the same problem with waitDuration