Suboptimal placement of the debug hover widget

[planger]

Steps to Reproduce:

1. Install the [Mock Debug Adapter extension]
2. Start debugging the example MD file of this extension
3. Set a breakpoint after "variables" have been initialized (e.g. line 37) and continue to this breakpoint
4. Hover above all variables and observe the positioning of the hover widget

Ideally the hover widget should

• Vertical placement: Always be placed directly above or below the variable / expression and never overlap it
• Horizontal placement: Always be placed horizontally at the start of the variable / expression (not the mouse pointer)
• The hover widget should not move with the mouse pointer

However, as can be observed below, the hover widget follows the mouse pointer, sometimes overlap with the variable / expression, and is sometimes even placed very weirdly (see start of the video).

Peek.2023-10-12.13-06.mp4