Fix upload account balance history

[benjamindimant]

The implementation using aiohttp FormData was not functioning as expected. This builds on the work of @CalvinChanCan and @hammem to implement this feature functionally.

To restate @CalvinChanCan's method described in #():

This PR improves on the upload account balance history.

The method upload_account_balance_history only uploads the CSV file but does not update the balance in Monarch Money.

A new method parse_upload_balance_history_session is added to parse the csv file which would cause an update to the account balance history.

Another new method get_upload_balance_history_session is added to check the status of whether the parsing is still processing or completed.

Finally upload_and_parse_balance_history uses these 3 methods together to upload and parse the account balance history so that it shows up in Monarch Money.

An example use case would be:

mm = MonarchMoney()
await mm.interactive_login()

# Get the account ID
accounts = await mm.get_accounts()
account = next((acc for acc in accounts['accounts'] if acc['displayName'] == "Bank Balance"), None)

# Load the target CSV and convert it into a list of BalanceHistoryRow
csv_file_path = "balance.csv"
balance_df = pd.read_csv(csv_file_path)
balance_history_rows = [
    BalanceHistoryRow(
        date=pd.to_datetime(row["Date"]),
        amount=row["Amount"],
        account_name=row["Account Name"]
    )
    for index, row in balance_df.iterrows()
]

await mm.upload_account_balance_history(account["id"], balance_history_rows)

[CFarzaneh]

Just checked out and confirmed working. Can we get this PR merged soon @hammem? The previous PR for this change was opened a year ago and never merged. I depend on upload_account_balance_history and it's been broken in main for over a year.