feat: add colorscheme to user in db (#987)

packages/auth/index.ts

@@ -1,7 +1,7 @@
 import { headers } from "next/headers";
 import type { DefaultSession } from "@auth/core/types";
 
-import type { GroupPermissionKey } from "@homarr/definitions";
+import type { ColorScheme, GroupPermissionKey } from "@homarr/definitions";
 
 import { createConfiguration } from "./configuration";
 
@@ -12,6 +12,7 @@ declare module "next-auth" {
     user: {
       id: string;
       permissions: GroupPermissionKey[];
+      colorScheme: ColorScheme;
     } & DefaultSession["user"];
   }
 }