Fix ruff error

Author: MisterArdavan

src/visualization/visualization.py

@@ -88,7 +88,6 @@ def validate_figsize(figsize: tuple[float | int, float | int]) -> tuple[float |
             figsize (tuple[float | int, float | int]): Size of the figure.
 
         Raises:
-
             TypeError: If figsize is not a tuple of two numbers (float or int).
 
         Returns: