BAT99-105 FUSE Spectrum still flawed

[Rplesha]

The corrections to BAT99-105 in the custom notebook (https://github.com/spacetelescope/ullyses-utils/blob/main/src/ullyses_utils/data/fuse/bat99-105_d0981701.ipynb) are likely still not enough to fully correct for contamination, and this dataset likely will need to be added to the FUSE reject list unless @awfullerton is able determine this dataset is still usable.