[apps] Don't forget to call viewWillAppear

At the moment ViewController::viewWillAppear doesn't do anything, so
there is no real impact. But if we want to use it it needs to be called
from subclasses.

apps/code/console_controller.cpp

@@ -162,6 +162,7 @@ const char * ConsoleController::inputText(const char * prompt) {
 }
 
 void ConsoleController::viewWillAppear() {
+  ViewController::viewWillAppear();
   loadPythonEnvironment();
   if (m_importScriptsWhenViewAppears) {
     m_importScriptsWhenViewAppears = false;