fix(settings): default wifi channel to 5

Co-authored-by: Cursor <cursoragent@cursor.com>

src/settings.py

@@ -3,6 +3,8 @@ import ubinascii
 import machine
 import network
 
+WIFI_CHANNEL_DEFAULT = 5
+
 class Settings(dict):
     SETTINGS_FILE = "/settings.json"
 
@@ -32,7 +34,7 @@ class Settings(dict):
         self["startup_mode"] = "default"
         self["brightness"] = 32
       
-        self["wifi_channel"] = 1
+        self["wifi_channel"] = WIFI_CHANNEL_DEFAULT
        
 
     def save(self):