Move default assignment on Mac.

CHANGED: add corner and repeat last command now default to 'I' instead
of '<insert>' on Mac.

1) wxWidgets doesn't currently display the correct graphic in the menu
for the insert key
2) Mac laptops don't have an instert key

Fixes https://gitlab.com/kicad/code/kicad/issues/5016

eeschema/tools/ee_actions.cpp

@@ -355,7 +355,11 @@ TOOL_ACTION EE_ACTIONS::finishSheet( "eeschema.InteractiveDrawing.finishSheet",
 //
 TOOL_ACTION EE_ACTIONS::repeatDrawItem( "eeschema.InteractiveEdit.repeatDrawItem",
         AS_GLOBAL,
+#ifdef __WXMAC__
+        'I', LEGACY_HK_NAME( "Repeat Last Item" ),
+#else
         WXK_INSERT, LEGACY_HK_NAME( "Repeat Last Item" ),
+#endif
         _( "Repeat Last Item" ), _( "Duplicates the last drawn item" ),
         nullptr );
 

pcbnew/tools/pcb_actions.cpp

@@ -1112,7 +1112,11 @@ TOOL_ACTION PCB_ACTIONS::distributeVertically( "pcbnew.AlignAndDistribute.distri
 //
 TOOL_ACTION PCB_ACTIONS::pointEditorAddCorner( "pcbnew.PointEditor.addCorner",
         AS_GLOBAL,
+#ifdef __WXMAC__
+        'I', "",
+#else
         WXK_INSERT, "",
+#endif
         _( "Create Corner" ), _( "Create a corner" ),
         add_corner_xpm );