fix(theme): add CssBaseline — MUI dark theme on Android was white text on white body background

src/App.tsx

@@ -1,6 +1,7 @@
 import { BrowserRouter } from 'react-router-dom';
 import { useMemo, useEffect } from 'react';
 import { ThemeProvider, createTheme } from '@mui/material/styles';
+import CssBaseline from '@mui/material/CssBaseline';
 import { useTLDraw } from './contexts/TLDrawContext';
 import { theme } from './services/themeService';
 import { AuthProvider } from './contexts/AuthContext';
@@ -53,6 +54,7 @@ const App = React.memo(() => {
             <TLDrawProvider>
               <DarkModeSync />
               <ThemeProvider theme={appTheme}>
+                <CssBaseline />
                 <AppRoutes />
               </ThemeProvider>
             </TLDrawProvider>