stop autolinking on nip19 codes, add an icon afterwards.

src/main/scala/Components.scala

@@ -232,12 +232,12 @@ object Components {
   ): Resource[IO, HtmlDivElement[IO]] =
     div(
       span(cls := "font-bold", key + " "),
-      span(
-        Styles.mono,
-        a(
-          href := "nostr:" + code,
-          code
-        )
+      span(Styles.mono, cls := "break-all", code),
+      a(
+        href := "nostr:" + code,
+        external
       )
     )
+
+  private val external = img(cls := "inline w-4 ml-2", src := "ext.svg")
 }

src/main/scala/Main.scala

@@ -27,7 +27,10 @@ object Main extends IOWebApp {
               cls := "inline-block w-8 mr-2",
               src := "/favicon.ico"
             ),
-            "nostr army knife"
+            a(
+              href := "https://github.com/fiatjaf/nostr-army-knife",
+              "nostr army knife"
+            )
           ),
           div(
             cls := "flex my-3",