refactor: use Flask Blueprints to organize extensions

- extensions are now blueprints: keep views, templastes and statics in the same folder
- increase app security using `flask-talisman`
- whenever possible use {{ url_for }} for links between pages
- remove references to non-existing JavaScript code
- add missing favicon.ico

lnbits/wallets/lnpay.py

@@ -12,18 +12,16 @@ class LNPayWallet(Wallet):
         self.auth_invoice = invoice_key
         self.auth_read = read_key
         self.auth_api = {"X-Api-Key": api_key}
-  
 
     def create_invoice(self, amount: int, memo: str = "") -> InvoiceResponse:
         payment_hash, payment_request = None, None
-        print(f"{self.endpoint}/user/wallet/{self.auth_invoice}/invoice")
 
         r = post(
             url=f"{self.endpoint}/user/wallet/{self.auth_invoice}/invoice",
             headers=self.auth_api,
-            json={"num_satoshis": f"{amount}", "memo": memo},  
+            json={"num_satoshis": f"{amount}", "memo": memo},
         )
-        print(r.json())
+
         if r.ok:
             data = r.json()
             payment_hash, payment_request = data["id"], data["payment_request"]
@@ -32,9 +30,10 @@ class LNPayWallet(Wallet):
 
     def pay_invoice(self, bolt11: str) -> PaymentResponse:
         r = post(
-            url=f"{self.endpoint}/user/wallet/{self.auth_admin}/withdraw", 
-            headers=self.auth_api, 
-            json={"payment_request": bolt11})
+            url=f"{self.endpoint}/user/wallet/{self.auth_admin}/withdraw",
+            headers=self.auth_api,
+            json={"payment_request": bolt11},
+        )
 
         return PaymentResponse(r, not r.ok)
 
@@ -45,8 +44,8 @@ class LNPayWallet(Wallet):
             return TxStatus(r, None)
 
         statuses = {0: None, 1: True, -1: False}
-        return TxStatus(r, statuses[r.json()["settled"]])
 
+        return TxStatus(r, statuses[r.json()["settled"]])
 
     def get_payment_status(self, payment_hash: str) -> TxStatus:
         r = get(url=f"{self.endpoint}/user/lntx/{payment_hash}", headers=self.auth_api)
@@ -55,4 +54,5 @@ class LNPayWallet(Wallet):
             return TxStatus(r, None)
 
         statuses = {0: None, 1: True, -1: False}
+
         return TxStatus(r, statuses[r.json()["settled"]])