Context at point doesn't handle commodity annotations.

[nnoodle]

Similar to #211.
Calling (ledger-context-at-point) on the second line in this example will group everything after the indent as part of the account name since ledger-line-config does not parse commodity annotations.

1970-01-02 Transaction
    Wallet            -1 EUR {1.10 USD} [1970-01-01] @ 1.09 USD
    Equity

;=> (acct-transaction account ((indent "   " 24) (status nil nil) (account "Assets            -1 EUR {1.10 USD} [1970-01-01] @ 1.09 USD" 28)))