Improves default tkinter arguments of ToolTip

[gnikit]

This address issues with users not being able to reuse the aspect= arg to override the value and generally with improving the code.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (238bfc1) 100.00% compared to head (96ca9bf) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #77 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 1 1 Lines 50 54 +4 ========================================= + Hits 50 54 +4 ```

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