fix(curriculum): correct stack typo (freeCodeCamp#65527)

Author: gurijalaspandana2104

curriculum/challenges/english/blocks/lecture-working-with-common-data-structures/6895d06b5968736797c408e5.md

@@ -43,7 +43,7 @@ The time complexity of the push and pop operations is typically `O(1)`, a consta
 
 When you push an element onto the stack, the element is simply added to the top.
 
-When you pop an element form the stack, the element at the top is removed.
+When you pop an element from the stack, the element at the top is removed.
 
 Therefore, the time it takes to perform these operations remains constant regardless of the size of the stack.