adding mdns so we dont rely on ip to connect

Provider/main/Kconfig.projbuild

@@ -31,6 +31,13 @@ menu "CalendarInk Network Configuration"
             If enabled, the LED will blink the last digit of the IP address
             acquired to assist in debugging.
 
+    config CALENDINK_MDNS_HOSTNAME
+        string "mDNS Hostname"
+        default "calendink"
+        help
+            The hostname to use for mDNS. The device will be accessible
+            at <hostname>.local. (e.g., calendink.local)
+
 endmenu
 
 menu "Calendink Web Server"