fix(shields): Fix incorrect union access in nice view

Fixed an error in a previous commit where a member of the selected
endpoint was used without checking if it was the correct transport type.
The nice!view status screen displays the active BLE profile regardless
of whether BLE is active, so we have to get that data directly from the
BLE code instead of from the selected endpoint.

app/boards/shields/nice_view/widgets/util.h

@@ -20,6 +20,7 @@ struct status_state {
     bool charging;
 #if !IS_ENABLED(CONFIG_ZMK_SPLIT) || IS_ENABLED(CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
     struct zmk_endpoint_instance selected_endpoint;
+    int active_profile_index;
     bool active_profile_connected;
     bool active_profile_bonded;
     uint8_t layer_index;