Remove @mdi/js as a dependency

matrixgw_frontend/src/routes/auth/LoginRoute.tsx

@@ -1,9 +1,10 @@
-import { Alert, Box, Button, CircularProgress } from "@mui/material";
-import Icon from "@mdi/react";
-import { mdiOpenid } from "@mdi/js";
+import { Alert, Box, Button, CircularProgress, SvgIcon } from "@mui/material";
 import { ServerApi } from "../../api/ServerApi";
 import React from "react";
 import { AuthApi } from "../../api/AuthApi";
+import openid from "../../icons/openid.svg";
+import { createSvgIcon } from "@mui/x-data-grid/internals";
+import { AppIcon } from "../../icons/AppIcon";
 
 export function LoginRoute(): React.ReactElement {
   const [loading, setLoading] = React.useState(false);
@@ -40,7 +41,7 @@ export function LoginRoute(): React.ReactElement {
           fullWidth
           variant="outlined"
           onClick={authWithOpenID}
-          startIcon={<Icon path={mdiOpenid} size={1} />}
+          startIcon={<AppIcon src={openid} />}
         >
           Sign in with {ServerApi.Config.oidc_provider_name}
         </Button>