fix nip-17 (#305)

* NIP-59 stuff

* nip-17 ios to androing works, android to ios still wip

* fix impl

* ios compat

* default relays for DMs

* delivery ack works

* delivery ack

---------

Co-authored-by: callebtc <93376500+callebtc@users.noreply.github.com>

app/src/main/java/com/bitchat/android/ui/MessageComponents.kt

@@ -271,15 +271,17 @@ fun DeliveryStatusIcon(status: DeliveryStatus) {
             )
         }
         is DeliveryStatus.Sent -> {
+            // Use a subtle hollow marker for Sent; single check is reserved for Delivered (iOS parity)
             Text(
-                text = "✓",
+                text = "○",
                 fontSize = 10.sp,
                 color = colorScheme.primary.copy(alpha = 0.6f)
             )
         }
         is DeliveryStatus.Delivered -> {
+            // Single check for Delivered (matches iOS expectations)
             Text(
-                text = "✓✓",
+                text = "✓",
                 fontSize = 10.sp,
                 color = colorScheme.primary.copy(alpha = 0.8f)
             )