Remove Automatic Lowercasing for Two-Character Input in Frontend

[mystiker]

Description

Currently, the frontend automatically converts input to lowercase if the input consists of only two characters. This behavior is no longer required, as the MUD backend now handles lowercasing when applicable.

Steps to Reproduce

Open the input field in the frontend.
Enter a two-character string (e.g., "AB").
Observe that the input is automatically converted to lowercase ("ab").

Expected Behavior

The frontend should no longer automatically lowercase any input, regardless of its length.

Tasks

Remove the automatic lowercasing logic from the frontend for two-character inputs.
Test to ensure the behavior is consistent with the updated MUD backend functionality.