mod seemingly dispatches to the rust remainder operator rather than the modulo operator

[deanm0000]

Checks

• [X] I have checked that this issue has not already been reported.

• [X] I have confirmed this bug exists on the latest version of Polars.

Reproducible example

import polars as pl
import numpy as np

x = 2.1
df = pl.DataFrame({'x':x})

print(x % 2) # Prints 0.1
print(np.mod(x,2)) # Prints 0.1
print(df.select(pl.col('x').mod(2))) # Prints 0.1

x = -.1
df = pl.DataFrame({'x':x})

print(x % 2) # Prints 1.9
print(np.mod(x,2)) # Prints 1.9
print(df.select(pl.col('x').mod(2))) #Prints -0.1

This originated at this SO question

Issue description

I found this which confirms BallPointBen's assertion that there's a mismatch in operators.

Expected behavior

mod should match the python % operator and np.mod

Installed versions

--------Version info---------
Polars:              0.18.15
Index type:          UInt32
Platform:            Linux-5.10.102.1-microsoft-standard-WSL2-x86_64-with-glibc2.31
Python:              3.10.12 (main, Jun  7 2023, 19:32:10) [GCC 10.2.1 20210110]

----Optional dependencies----
adbc_driver_sqlite:  <not installed>
cloudpickle:         <not installed>
connectorx:          0.3.1
deltalake:           <not installed>
fsspec:              2023.6.0
matplotlib:          <not installed>
numpy:               1.25.2
pandas:              2.0.3
pyarrow:             12.0.1
pydantic:            2.1.1
sqlalchemy:          <not installed>
xlsx2csv:            0.8.1
xlsxwriter:          3.1.2