Navigation cube is labelled incorrectly

[hannobraun]

Here's what it looks like to display the cuboid model without moving the camera:

The navigation cube up-right shows "Front", but this is not correct. In its initial position, the camera looks down along the z-axis, so it should read "Top".

Here's the full list of directions, and how they should be labelled:

• Negative X: Left
• Positive X: Right
• Negative Y: Front
• Positive Y: Rear
• Negative Z: Bottom
• Positive Z: Top

The navigation cube is implemented in the fj-viewer crate:

• Rust code: https://github.com/hannobraun/fornjot/blob/78919aae70129f22397dc46a3d4a9cf199a35711/crates/fj-viewer/src/graphics/navigation_cube.rs
• Shader: https://github.com/hannobraun/fornjot/blob/78919aae70129f22397dc46a3d4a9cf199a35711/crates/fj-viewer/src/graphics/navigation_cube.wgsl
• Assets: https://github.com/hannobraun/fornjot/tree/78919aae70129f22397dc46a3d4a9cf199a35711/crates/fj-viewer/assets/navigation_cube

I don't know this code very well, so I can't provide much guidance. But none of this is very intertwined with other Fornjot code, so I hope anyone with some wgpu and/or general graphics expertise could pick this up.