[Feature]: Default to Figure tokens on an iso grid

[kwvanderlinde]

Describe the Problem

When populating an isometric grid with figure tokens, the tokens' shape is first set to Top-Down. So I have to modify each one to instead be a Figure, which is tedious.

The Solution you'd like

When an image is dragged onto the Token layer of an iso map, we should assume that it is meant to be a Figure unless one of our heuristics suggests otherwise. Top-Down should never be selected by default for iso maps.

Alternatives that you've considered.

Using macros to automate the process.

Additional Context

No response