Tooltip appears when Foundry first loads

[illandril]

When the mouse first moves after a scene is loaded, one character will often act as if the mouse was hovering over them, and therefore show the tooltip (which will not hide until you mouse over another character).

This is really a bug in Foundry itself, not this module... but it would be good if this module could implement a workaround for that issue to avoid needing to wait for a Foundry fix.

[illandril]

This happens when the mouse first moves any time the scene changes, in addition to when foundry first loads. This may be a PIXI bug. I should test this on FoundryVTT 0.7.x, and open an issue for Foundry if this is still an issue there.

Fixing this at the module level will likely require adding a new window-level mouse move event listener, and using that to determine if the mouse is currently actually over the token or not (which may be difficult to make reliable, and would break things like showing the tooltip when a chat name hover simulates a token hover).

[illandril]

Relevant FoundryVTT issue: https://gitlab.com/foundrynet/foundryvtt/-/issues/3506