Added backspace

wordle/wordle.c

@@ -158,6 +158,13 @@ void launch_game() {
             }
         }
 
+        if (key == KEY_BACKSPACE) {
+            if (current_try_letter_id > 0) {
+                current_try_letter_id -= 1;
+                tries[current_try_id][current_try_letter_id] = '\0';
+            }
+        }
+
         handle_controls(key);
         refresh();
     }