Fix VoxelGI info label being cut off

[Anutrix]

Fixes #53529.

Though it seems like a regression from #35891, it looks like it was just revealed in that commit.
The bug seems to be VoxelGI specific because it couldn't be reproduced on increasing Mesh3DInstance's Mesh button label.

Before fix:

Bugged.

[Hardcoded longer text to test] - Works as expected.

After fix:

Fixed.

[Hardcoded longer text to test] - Works as expected.

[akien-mga]

That's very wide, it will probably cause issues for users with low resolution monitors. I'm not sure why there's so much information encoded horizontally here but this needs to be redesigned.

[Calinou]

We could change the VoxelGI label to only display the VRAM size. It's the main relevant information; the actual probe resolution isn't so important.

[akien-mga]

Why does it need to be displayed on the button itself though, and not in a tooltip?

[Calinou]

Why does it need to be displayed on the button itself though, and not in a tooltip?

Do you mean we should display the resolution and VRAM size in the Bake button's tooltip? That sounds like a reasonable solution to me. It's less discoverable this way, but it's secondary information for most people anyway.

[akien-mga]

Yeah I think so - unless that's really information that users need to see all the time, but I don't think it is? If you get the information on hover you can still use it to decide if you want to actually press the button given these metrics (as I guess the point is to let users estimate how long it might take?).

[Anutrix]

The label(resolution and VRAM size) depending on the estimated performance level gets colored success_color, warning_color or error_color.
This gets lost in tooltip I guess. I don't recall seeing any colored tooltips used in the editor assuming individual tooltips support it.

[Calinou]

(as I guess the point is to let users estimate how long it might take?).

I think the point of the VRAM size display is more about run-time performance than bake times. VoxelGI bake times are pretty fast already – it's rare for them to go beyond a minute on a large scene. In comparison, a CPU lightmapper can take hours on the same scene.

[akien-mga]

I don't think removing clipping is a good solution here, I suggest moving this information to a tooltip as discussed above.