fixed mistyping

app.py

@@ -21,7 +21,7 @@ if len(uploaded_files) == 3:
         scan_line = pixels[line_pos, :]
         scan_lines.append(scan_line)
 
-    plt.figure(figsize=(10, 6))
+plt.figure(figsize=(10, 6))
 for i, (line, file) in enumerate(zip(scan_lines, uploaded_files)):
     plt.plot(line, label=f'{file.name}')
 plt.xlabel('Pixel Position')