Update corne.keymap

config/corne.keymap

@@ -35,6 +35,9 @@
             delay-ms = <0>;                   // 10
         };
     };
+&soft_off {
+    hold-time-ms = <5000>; // Only turn off it the key is held for 5 seconds or longer.
+};
 rgb_encoder: rgb_encoder {
             compatible = "zmk,behavior-sensor-rotate";
             label = "RGB_ENCODER";