Drop the empty bordered panel for no-auth connections (#1181)

The connect modal's auth-method panel always rendered a framed box
(border, muted fill, padding). With No authentication selected there are
no fields to show, so it appeared as an empty bordered rectangle below
the method selector. Only apply the frame when the panel has content.

Author: RhysSullivan

packages/react/src/components/add-account-modal.tsx

@@ -1665,7 +1665,12 @@ function AddAccountModalView(props: AddAccountModalProps) {
                   {dcrActive ? null : (
                     <TabsContent
                       value={methodId}
-                      className="mt-0 min-w-0 space-y-5 rounded-md border border-border/60 bg-muted/15 p-4"
+                      className={cn(
+                        "mt-0 min-w-0 space-y-5",
+                        // No-auth renders no fields, so skip the framed box that
+                        // would otherwise show up as an empty bordered panel.
+                        isNoAuth ? null : "rounded-md border border-border/60 bg-muted/15 p-4",
+                      )}
                     >
                       {method?.placements && !isEnvMethod && singleInput
                         ? (() => {