Request: display Podmiot2 JST and GV flags

[drzazga]

The official KSeF PDF displays two flags in the buyer (Podmiot2) section:

• "Faktura dotyczy jednostki podrzędnej JST"
• "Faktura dotyczy członka grupy GV"

These correspond to Podmiot2/JST and Podmiot2/GV elements in the FA(3) schema, where value 1 = TAK (Yes) and 2 = NIE (No). Both fields are required in the schema.
Currently these fields are not rendered, even though the data is present in the XML.

Suggested placement

Below the buyer's address in the Podmiot2 section, matching the official KSeF PDF layout.