Changes 'always show grid' hotkey to prevent conflict with 'pan mode'

(cherry picked from commit 1c546fdaeaa709cff29326941055102a2f8a9cd9)

editor/plugins/canvas_item_editor_plugin.cpp

@@ -5775,7 +5775,7 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 
 	p = view_menu->get_popup();
 	p->set_hide_on_checkable_item_selection(false);
-	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_grid", TTR("Always Show Grid"), KEY_G), SHOW_GRID);
+	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_grid", TTR("Always Show Grid"), KEY_MASK_CTRL | KEY_G), SHOW_GRID);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_helpers", TTR("Show Helpers"), KEY_H), SHOW_HELPERS);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_rulers", TTR("Show Rulers")), SHOW_RULERS);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_guides", TTR("Show Guides"), KEY_Y), SHOW_GUIDES);