Rename Project Euler directories and other dependent changes (#3300)

* Rename all Project Euler directories:

Reason:
The change was done to maintain consistency throughout the directory
and to keep all directories in sorted order.

Due to the above change, some config files had to be modified:
'problem_22` -> `problem_022`

* Update scripts to pad zeroes in PE directories

project_euler/problem_041/sol1.py

@@ -0,0 +1,56 @@
+"""
+Pandigital prime
+Problem 41: https://projecteuler.net/problem=41
+
+We shall say that an n-digit number is pandigital if it makes use of all the digits
+1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.
+What is the largest n-digit pandigital prime that exists?
+
+All pandigital numbers except for 1, 4 ,7 pandigital numbers are divisible by 3.
+So we will check only 7 digit pandigital numbers to obtain the largest possible
+pandigital prime.
+"""
+from __future__ import annotations
+
+from itertools import permutations
+from math import sqrt
+
+
+def is_prime(n: int) -> bool:
+    """
+    Returns True if n is prime,
+    False otherwise.
+    >>> is_prime(67483)
+    False
+    >>> is_prime(563)
+    True
+    >>> is_prime(87)
+    False
+    """
+    if n % 2 == 0:
+        return False
+    for i in range(3, int(sqrt(n) + 1), 2):
+        if n % i == 0:
+            return False
+    return True
+
+
+def solution(n: int = 7) -> int:
+    """
+    Returns the maximum pandigital prime number of length n.
+    If there are none, then it will return 0.
+    >>> solution(2)
+    0
+    >>> solution(4)
+    4231
+    >>> solution(7)
+    7652413
+    """
+    pandigital_str = "".join(str(i) for i in range(1, n + 1))
+    perm_list = [int("".join(i)) for i in permutations(pandigital_str, n)]
+    pandigitals = [num for num in perm_list if is_prime(num)]
+    return max(pandigitals) if pandigitals else 0
+
+
+if __name__ == "__main__":
+    print(f"{solution() = }")