Handle bunker login errors better

src/app/components/LogInBunker.svelte

@@ -48,13 +48,20 @@
     try {
       const {signerPubkey, connectSecret, relays} = Nip46Broker.parseBunkerUrl($bunker)
 
-      if (!signerPubkey || relays.length === 0) {
+      if (!signerPubkey) {
         return pushToast({
           theme: "error",
           message: "Sorry, it looks like that's an invalid bunker link.",
         })
       }
 
+      if (relays.length === 0) {
+        return pushToast({
+          theme: "error",
+          message: "That bunker link does not include any relays.",
+        })
+      }
+
       controller.loading.set(true)
 
       const {clientSecret} = controller
@@ -91,6 +98,7 @@
   }
 
   const selectConnect = () => {
+    controller.loading.set(false)
     mode = "connect"
   }