[ticket 640] added nickname to note (#687)

* [ticket 640] added nickname to note

* [640] added check for empty value

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

@@ -202,6 +202,7 @@ fun LocationNotesSheet(
                         onDraftChange = { draft = it },
                         sendButtonEnabled = sendButtonEnabled,
                         accentGreen = accentGreen,
+                        nickname = nickname,
                         onSend = {
                             val content = draft.trim()
                             if (content.isNotEmpty()) {
@@ -451,18 +452,37 @@ private fun LocationNotesInputSection(
     onDraftChange: (String) -> Unit,
     sendButtonEnabled: Boolean,
     accentGreen: Color,
+    nickname: String?,
     onSend: () -> Unit
 ) {
     val isDark = isSystemInDarkTheme()
     val colorScheme = MaterialTheme.colorScheme
 
-    Row(
+    Column(
         modifier = Modifier
             .fillMaxWidth()
             .background(color = colorScheme.background)
-            .padding(horizontal = 12.dp, vertical = 8.dp), // Match main chat padding
+            .padding(horizontal = 12.dp, vertical = 8.dp)
+    ) {
+        if (!nickname.isNullOrBlank()) {
+            val baseName = nickname.split("#", limit = 2).firstOrNull() ?: nickname
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                Text(
+                    text = "@$baseName",
+                    fontFamily = FontFamily.Monospace,
+                    fontSize = 12.sp,
+                    fontWeight = FontWeight.SemiBold,
+                    color = colorScheme.onSurface
+                )
+                Spacer(modifier = Modifier.width(4.dp))
+            }
+            Spacer(modifier = Modifier.height(4.dp))
+        }
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
             verticalAlignment = Alignment.CenterVertically,
-        horizontalArrangement = Arrangement.spacedBy(8.dp) // Match main chat spacing
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
         ) {
         // Text input with placeholder overlay (matches main chat exactly)
         Box(
@@ -533,6 +553,7 @@ private fun LocationNotesInputSection(
         }
     }
     }
+}
 
 /**
  * Timestamp text - matches iOS timestampText exactly