Category name with slash

[AleTopp]

Since in FF there is no way to create subcategories, I use the slash symbol to define them (like Home/Groceries).
This prevents me from writing a comment that could be interpreted correctly by the script, since it will break only by slashes (https://github.com/adyanth/splitwise-firefly-sync/blob/main/main.py#L159C5-L159C28).

My comment was:

Firefly/Supermarket/Home/Groceries/Some comment/Debit card

And it failed with error:

  File "/app/main.py", line 458, in cached
    raise ValueError(f"Account {account_name} not found in asset accounts.")
ValueError: Account Some comment not found in asset accounts.