Move variables to the right column (#859)

* move variable editor

* support high contrast and tab navigation

* Remove obsolete resources

* take feedback into account

* Fix focus when virtualization recycle a EquationTextBox

* formatting

src/Calculator/Controls/EquationTextBox.cpp

@@ -176,7 +176,6 @@ void EquationTextBox::OnLostFocus(RoutedEventArgs ^ e)
         return;
     }
 
-    EquationSubmitted(this, m_sourceSubmission);
     if (m_functionButton && m_richEditBox->MathText != L"")
     {
         m_functionButton->IsEnabled = true;
@@ -218,6 +217,8 @@ void EquationTextBox::OnRichEditBoxLostFocus(Object ^ sender, RoutedEventArgs ^
 
     UpdateCommonVisualState();
     UpdateButtonsVisualState();
+
+    EquationSubmitted(this, m_sourceSubmission);
 }
 
 void EquationTextBox::OnDeleteButtonClicked(Object ^ sender, RoutedEventArgs ^ e)