move themes in units

frontend/src/providers/ThemeProvider.js

@@ -2,7 +2,7 @@ import React, { useReducer, useMemo, useContext } from "react";
 import PropTypes from "prop-types";
 import { ThemeProvider as MuiThemeProvider } from "@mui/material/styles";
 import { localStorage } from "@flare/js-utils";
-import { getThemes } from "../themes";
+import { getThemes } from "../units/themes";
 
 const ApplicationThemeContext = React.createContext();
 const LOCAL_STORAGE_COLOR_SCHEME_KEY = "network-resurrector-color-scheme";