add secondary color

src/core/utils/theme.js

@@ -1,5 +1,6 @@
 "use client";
 import { createTheme } from "@mui/material";
+import { grey } from '@mui/material/colors';
 
 const theme = createTheme({
     direction: "rtl",
@@ -16,6 +17,9 @@ const theme = createTheme({
             main: "#015688",
             contrastText: "#fff",
         },
+        secondary: {
+            main: grey[700],
+        }
     },
     components: {
         MuiBackdrop: {