Seaborn似乎对显示的轴标签做了很多修改，因为我不能在上面覆盖“常规”matplotlib对象。我如何修复下面的行为？

import seaborn as sns
import matplotlib.pyplot as plt
import pandas as pd

fig, ax = plt.subplots(figsize=(10, 6))

data = pd.DataFrame()
data["value"] = np.random.normal(0, 1, 1000)
data["week"] = np.random.randint(20, 30, 1000)

# make a violin plot, and put a line on top of it
sns.violinplot(data=data, x="week", y="value", scale="width", linewidth=0.5, palette="viridis")

# fit a line to the data
x = data["week"].values
y = data["value"].values
m, b = np.polyfit(x, y, 1)

y_hat = m * x + b

# plot the line
ax.plot(x, y_hat, color="black", linewidth=2)