opt.: collapse custom cmd output

lib/data/model/server/custom.dart

@@ -63,4 +63,17 @@ final class ServerCustom {
   String toString() {
     return toJson().toString();
   }
+
+  @override
+  bool operator ==(Object other) {
+    return other is ServerCustom &&
+        //other.temperature == temperature &&
+        other.pveAddr == pveAddr &&
+        other.pveIgnoreCert == pveIgnoreCert &&
+        other.cmds == cmds &&
+        other.preferTempDev == preferTempDev;
+  }
+  
+  @override
+  int get hashCode => toString().hashCode;
 }

lib/data/model/server/server.ext.dart

@@ -7,7 +7,13 @@ extension ServerX on Server {
         return l10n.disconnected;
       case ServerState.finished:
         // Highest priority of temperature display
-        final cmdTemp = status.customCmds['server_card_top_right'];
+        final cmdTemp = () {
+          final val = status.customCmds['server_card_top_right'];
+          if (val == null) return null;
+          // This returned value is used on server card top right, so it should 
+          // be a single line string.
+          return val.split('\n').lastOrNull;
+        }();
         final temperatureVal = () {
           // Second priority
           final preferTempDev = spi.custom?.preferTempDev;