Support for NIP-31 alt tags

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -477,10 +477,10 @@ class Account(
         }
     }
 
-    suspend fun sendNewUserMetadata(toString: String, identities: List<IdentityClaim>) {
+    suspend fun sendNewUserMetadata(toString: String, newName: String, identities: List<IdentityClaim>) {
         if (!isWriteable()) return
 
-        MetadataEvent.create(toString, identities, signer) {
+        MetadataEvent.create(toString, newName, identities, signer) {
             Client.send(it)
             LocalCache.justConsume(it, null)
         }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataViewModel.kt

@@ -124,7 +124,7 @@ class NewUserMetadataViewModel : ViewModel() {
         ObjectMapper().writeValue(writer, currentJson)
 
         viewModelScope.launch(Dispatchers.IO) {
-            account.sendNewUserMetadata(writer.buffer.toString(), newClaims)
+            account.sendNewUserMetadata(writer.buffer.toString(), displayName.value.trim(), newClaims)
         }
         clear()
     }