[apps/code] Fix input(), that did not return the input

apps/code/console_edit_cell.h

@@ -34,6 +34,8 @@ public:
   bool insertText(const char * text);
   void setPrompt(const char * prompt);
   const char * promptText() const { return m_promptView.text(); }
+  void clearAndReduceSize();
+  const char * shiftCurrentTextAndClear();
 private:
   PointerTextView m_promptView;
   TextField m_textField;