[apps/graph] Fix CurveParamCtrlr relayouting bug

Scenario:
f(x) = 1, g(theta) = 2, go to Graph.
Press ok on the polar curve, then Back, then OK on the cartesian curve :
the menu is drawn as if the curve was still polar.

apps/graph/graph/curve_parameter_controller.cpp

@@ -76,6 +76,13 @@ int CurveParameterController::reusableCellCount() {
   return 1 + (shouldDisplayCalculationAndDerivative() ? 2 : 0);
 }
 
+void CurveParameterController::viewDidDisappear() {
+  /* Deselect the table properly because it needs to be relayouted the next time
+   * it appears: the number of rows might change according to the plot type. */
+  m_selectableTableView.deselectTable(false);
+  m_selectableTableView.setFrame(KDRectZero);
+}
+
 bool CurveParameterController::shouldDisplayCalculationAndDerivative() const {
   Shared::ExpiringPointer<CartesianFunction> f = App::app()->functionStore()->modelForRecord(m_record);
   return f->plotType() == CartesianFunction::PlotType::Cartesian;

apps/graph/graph/curve_parameter_controller.h

@@ -18,6 +18,7 @@ public:
   HighlightCell * reusableCell(int index) override;
   int reusableCellCount() override;
   void willDisplayCellForIndex(HighlightCell * cell, int index) override;
+  void viewDidDisappear() override;
 private:
   bool shouldDisplayCalculationAndDerivative() const;
   int cellIndex(int visibleCellIndex) const;