update app

app/app.py

@@ -1,11 +1,10 @@
 import threading
+from tkinter import Tk, BOTH, StringVar
+from tkinter.filedialog import askopenfilenames
+from tkinter.ttk import Frame, Label, Button
 
 import fawkes.protection
 
-from tkinter import Tk, BOTH, StringVar
-from tkinter.ttk import Frame, Label, Style, Button
-from tkinter.filedialog import askdirectory, askopenfilenames
-
 
 class UI(Frame):
     def __init__(self):
@@ -60,4 +59,4 @@ def thread_it(func, *args):
 
 
 if __name__ == '__main__':
-    main()
+    main()