[REFACTOR] cleanup views/api.py (#1865)

pull out models
line lengths
change models for tests

tests/conftest.py

@@ -8,8 +8,9 @@ from httpx import AsyncClient
 from lnbits.app import create_app
 from lnbits.commands import migrate_databases
 from lnbits.core.crud import create_account, create_wallet
+from lnbits.core.models import CreateInvoice
 from lnbits.core.services import update_wallet_balance
-from lnbits.core.views.api import CreateInvoiceData, api_payments_create_invoice
+from lnbits.core.views.api import api_payments_create_invoice
 from lnbits.db import Database
 from lnbits.settings import settings
 from tests.helpers import get_hold_invoice, get_random_invoice_data, get_real_invoice
@@ -142,7 +143,7 @@ async def adminkey_headers_to(to_wallet):
 @pytest_asyncio.fixture(scope="session")
 async def invoice(to_wallet):
     data = await get_random_invoice_data()
-    invoiceData = CreateInvoiceData(**data)
+    invoiceData = CreateInvoice(**data)
     invoice = await api_payments_create_invoice(invoiceData, to_wallet)
     yield invoice
     del invoice