```python
import numpy as np
import argparse
import matplotlib.pyplot as plt
from scipy import sparse
import fealpy
from fealpy.mesh import MeshFactory as MF
from fealpy.timeintegratoralg import ADI_2d
from fealpy.functionspace import FirstKindNedelecFiniteElementSpace2d, ScaledMonomialSpace2d
from fealpy.boundarycondition import DirichletBC

# Define command line arguments
parser = argparse.ArgumentParser(description="PDE Solver Parameters")
parser.add_argument("--time_div", type=int, default=100, help="Time division")
parser.add_argument("--init_spatial_div", type=int, default=4, help="Initial spatial division")
parser.add_argument("--num_spatial_iter", type=int, default=5, help="Number of spatial iterations")
args = parser.parse_args()

# Create an initial 2D triangular mesh
mesh = MF.boxmesh2d([0, 1, 0, 1], nx=args.init_spatial_div, ny=args.init_spatial_div, meshtype='tri')

# Define the parameters for the PDE
pde = ADI_2d()  # Assuming ADI_2d is a class for handling PDE parameters

# Initialize the electric and magnetic fields
electric_space = FirstKindNedelecFiniteElementSpace2d(mesh, p=1)
magnetic_space = ScaledMonomialSpace2d(mesh, p=1)

# Define a function to get the phi curl matrix
def get_phi_curl_matrix():
    # Placeholder for actual implementation
    pass

# Create mass and curl matrices
# Placeholder for actual implementation

for i in range(args.num_spatial_iter):
    # Compute the right-hand side of the equation for the next time layer
    # Placeholder for actual implementation
    
    # Handle the boundary conditions for the next time layer
    # Placeholder for actual implementation
    
    # Compute the electric and magnetic fields for the next time layer
    # Placeholder for actual implementation
    
    # Calculate the error between the computed and actual solutions
    # Placeholder for actual implementation
    
    if i < args.num_spatial_iter - 1:
        # Refine the mesh uniformly
        mesh.uniform_refine()
        
# Display the error matrix and plot the error rates
# Placeholder for actual implementation
```