fixxed some json stuff

Signed-off-by: Ebbe Baß <ebbe@ping-mee.de>

pc-client/main.py

@@ -2,6 +2,7 @@ import time
 import os
 current_path = os.path.dirname(os.path.realpath(__file__))
 import threading
+import json
 try:
     import pystray
     from PIL import Image, ImageDraw
@@ -25,20 +26,19 @@ def debug_print_error(msg: str):
 
 if not os.path.exists(current_path+"/modes.json"):
     with open(current_path+"/modes.json", "w") as f:
-        f.write({"mode": 0})
+        json.dump({"mode": 0}, f)
 else:
     with open(current_path+"/modes.json", "r") as f:
         global mode
-        mode = f.read()
-
+        mode = json.load(f)["mode"]
 
 #mode switches
-def volument_mode():
+def volumen_mode():
     debug_print("volument mode")
     global mode
     mode = 0
     with open(current_path+"/modes.json", "w") as f:
-        f.write({"mode": 0})
+        json.dump({"mode": 0}, f)
 
 #mode actions