Change default lnurlp

lnbits/core/services/users.py

@@ -249,10 +249,10 @@ async def _create_default_pay_link(account: Account, wallet) -> None:
             # Note default `currency` is satoshis when set as NULL in db
             min=1,  # minimum 1 sat
             max=500000,  # maximum 500,000 sats
-            comment_chars=0,
+            comment_chars=140,
             username=account.username,  # use the username as lightning address
             zaps=True,
-            disposable=False,
+            disposable=True,
         )
 
         await create_pay_link(pay_link_data)