fix: fixed reboot procedure (fixes #313)

pwnagotchi/__init__.py

@@ -65,3 +65,9 @@ def shutdown():
         time.sleep(5)
     os.system("sync")
     os.system("halt")
+
+
+def reboot():
+    logging.warning("rebooting ...")
+    os.system("sync")
+    os.system("shutdown -r now")

pwnagotchi/agent.py

@@ -481,9 +481,7 @@ class Agent(Client, AsyncAdvertiser, AsyncTrainer):
     def _reboot(self):
         self.set_rebooting()
         self._save_recovery_data()
-        logging.warning("rebooting the system ...")
-        os.system("/usr/bin/sync")
-        os.system("/usr/sbin/shutdown -r now")
+        pwnagotchi.reboot()
 
     def next_epoch(self):
         was_stale = self.is_stale()