basicwidget: Add an options show Tooltip widget in the closest side to the mouse cursor

[udan-jayanith]

tooltip-with-a-squre-2026-05-27_18.13.06.mp4

Showing tooltip in top is weired for big widgets when mouse cursor isn't near the tooltip

[hajimehoshi]

Make your own tooltip by a popup if you really need such feature.

[hajimehoshi]

Let me revisit this