[WIP] Update auth context imports in main component

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

import React, { useState, useEffect } from "react";
import { AuthProvider, useAuth } from './AuthContext';
import Login from './Login';
import AppContent from './AppContent';
// ...rest remain unchanged

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[Copilot]

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