common/webauthn: Add new URLs for gandi.net and Slush Pool.

common/defs/webauthn/apps/gandi.json

@@ -1,4 +1,5 @@
 {
   "label": "Gandi",
-  "u2f": ["https://account.gandi.net/api/u2f/trusted_facets.json"]
+  "u2f": ["https://account.gandi.net/api/u2f/trusted_facets.json"],
+  "webauthn": ["gandi.net"]
 }

common/defs/webauthn/apps/slushpool.json

@@ -1,4 +1,4 @@
 {
   "label": "Slush Pool",
-  "u2f": ["https://slushpool.com/static/security/u2f.json"]
+  "u2f": ["https://slushpool.com/static/security/u2f.json", "https://slushpool.com/u2f.json"]
 }

core/src/apps/webauthn/knownapps.py

@@ -42,11 +42,13 @@ _knownapps = {
         "label": "Slush Pool",
         "use_sign_count": True,
     },
+    "https://slushpool.com/u2f.json": {"label": "Slush Pool", "use_sign_count": True},
     "https://dashboard.stripe.com": {"label": "Stripe", "use_sign_count": True},
     "https://u2f.bin.coffee": {"label": "u2f.bin.coffee", "use_sign_count": True},
     # WebAuthn
     "www.binance.com": {"label": "Binance", "use_sign_count": False},
     "www.dropbox.com": {"label": "Dropbox"},
+    "gandi.net": {"label": "Gandi"},
     "github.com": {"label": "GitHub", "use_sign_count": True},
     "google.com": {"label": "Google"},
     "secure.login.gov": {"label": "login.gov"},