Unexpected diagonal movement error

[EmileEttel]

Describe the bug
If you start moving diagonally you will keep moving diagonally until you stop moving altogether

To Reproduce
Steps to reproduce the behavior:

1. Start game
2. Move down and right or any other diagonal direction
3. Release one of the directions
4. You still move diagonally

Expected behavior
When you release a certain direction you should only go in the direction that you are holding