safemode: add serial handler to default safemode apps

src/SafeMode.cpp

@@ -3,6 +3,7 @@
 #include "./Platform.h"
 #include "./Static.h"
 #include "./Config.h"
+#include "./inputs/Serial.h"
 
 TaskFunc safeModeNag([]{ 
     static uint8_t frame = 0;
@@ -41,6 +42,7 @@ SafeMode::safeModeApp{{
     // System logging
     Static<LogService>::instance(),
     &safeModeNag,
+    Static<SerialInput>::instance(),
 #ifdef CONFIG_WIFI
     // ESP Wifi
     Static<WiFiTask>::instance(),