Cone FDK and backprojection issues with 3kx3k panel

## Expected Behavior

Obtaining a reconstruction or backprojection without stripes.

## Actual Behavior

We observe something that looks like the an `int32` counter going beyond the max value when backprojecting (or FDK-ing) a cone beam dataset acquired with a 3054x3054 panel. This happens with `fdk` weights:

BackProjection
FDK

This for backprojection with `matched` weights

## Code to reproduce the problem (If applicable)

This is a user report in CIL. I currently don't have a machine with TIGRE 2.4 to try this onto.
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## Specifications

- MATLAB/python version:
- OS: Windows
- CUDA version:
- TIGRE version 2.4 via CIL