やってみたこと

import random
import time

width = int(input("State the width of the grid: "))
height = int(input("State the height of the grid: "))

symbols = ["A"]
grid = {}
direction_way="T","B","L","R"

for y in range(height):
    for x in range(width):
        coordinate = (x, y)
        grid[coordinate] = " "

for element in range(1):
    place, ant_one_place = random.choice(list(grid.items()))
    ant_one_direction = random.choice(symbols)
    grid[place] = ant_one_direction

def print_grid():
    for y in range(height):
        for i in range(width):
            print("+---", end="")
        print("+")
        for x in range(width):
            if x == 0:
                print("|", end="")
            coordinate = (x, y)
            print("", grid[coordinate], end=" |")
        if y != height:
            print("")
    for i in range(width):
        print("+---", end="")
    print("+")


print_grid()
time.sleep(1)