Add theming boilerplate

src/theme.ts

@@ -0,0 +1,20 @@
+import { extendTheme } from '@mui/joy/styles';
+
+
+declare module '@mui/joy/styles' {
+    // No custom tokens found, you can skip the theme augmentation.
+}
+
+
+const theme = extendTheme({
+    "colorSchemes": {
+        "light": {
+            "palette": {}
+        },
+        "dark": {
+            "palette": {}
+        }
+    }
+})
+
+export default theme;