Add padding to bottom of screen for touchscreen

Mainly for NV14, but won't hurt TX16S, etc

radio/src/gui/colorlcd/model_curves.cpp

@@ -403,5 +403,10 @@ void ModelCurvesPage::build(FormWindow * window, int8_t focusIndex)
     }
   }
 
+// extra bottom padding if touchscreen
+#if defined HARDWARE_TOUCH
+  grid.nextLine();
+#endif
+
   window->setInnerHeight(grid.getWindowHeight());
 }

radio/src/gui/colorlcd/radio_hardware.cpp

@@ -424,5 +424,10 @@ void RadioHardwarePage::build(FormWindow * window)
   });
   grid.nextLine();
 
+// extra bottom padding if touchscreen
+#if defined HARDWARE_TOUCH
+  grid.nextLine();
+#endif
+
   window->setInnerHeight(grid.getWindowHeight());
 }

radio/src/gui/colorlcd/radio_setup.cpp

@@ -524,6 +524,11 @@ void RadioSetupPage::build(FormWindow * window)
   });
   grid.nextLine();
 
+// extra bottom padding if touchscreen
+#if defined HARDWARE_TOUCH
+  grid.nextLine();
+#endif
+
   window->setInnerHeight(grid.getWindowHeight());
 }