Add missing newlines to improve code readability

Inserted blank lines in the code to enhance readability and adhere to Python's style guidelines. These changes improve the visual clarity of the class and function definitions.

Author: nicholasadamou

Linked Lists/remove_node_from_end_of_linked_list.py

@@ -4,11 +4,13 @@
 
 import unittest
 
+
 class ListNode:
     def __init__(self, val=0, next=None):
         self.val = val
         self.next = next
 
+
 def remove_nth_from_end(head: Optional[ListNode], n: int) -> Optional[ListNode]:
     def get_length(head: Optional[ListNode]):
         length: int = 0
@@ -46,6 +48,7 @@ def get_length(head: Optional[ListNode]):
 
     return head
 
+
 class Test(unittest.TestCase):
     def test_example(self):
         # Create the linked list 1 -> 2 -> 3 -> 4 -> 5