[docs] Fix GridLegacy docs order

Author: oliviertassinari

docs/data/material/pages.ts

@@ -106,8 +106,8 @@ const pages: MuiPage[] = [
         children: [
           { pathname: '/material-ui/react-box' },
           { pathname: '/material-ui/react-container' },
-          { pathname: '/material-ui/react-grid-legacy', deprecated: true, title: 'Grid Legacy' },
           { pathname: '/material-ui/react-grid' },
+          { pathname: '/material-ui/react-grid-legacy', deprecated: true, title: 'GridLegacy' },
           { pathname: '/material-ui/react-stack' },
           { pathname: '/material-ui/react-image-list', title: 'Image List' },
         ],

docs/translations/translations.json

@@ -99,8 +99,8 @@
     "layout": "Layout",
     "/material-ui/react-box": "Box",
     "/material-ui/react-container": "Container",
-    "/material-ui/react-grid-legacy": "Grid Legacy",
     "/material-ui/react-grid": "Grid",
+    "/material-ui/react-grid-legacy": "GridLegacy",
     "/material-ui/react-stack": "Stack",
     "/material-ui/react-image-list": "Image List",
     "utils": "Utils",