new_contents: import seaborn as sns
  import matplotlib.pyplot as plt
  
  
  def strength_plot(side_a, side_b):
      """A simple line plot of the fighting strength of both sides of a naval engagement.
  
      Attributes:
          - sidedA / sideB: lists detailing the hit points of each side at every consecutive time pulse."""
      sns.set_theme()
      sns.lineplot(data=side_a)
      sns.lineplot(data=side_b)
      plt.show()
  
subject: Create plot.py