feat (Menu Features): Added a port forwarding button and optimized server storage logic (#1092)

* feat (Menu Features): Added a port forwarding button and optimized server storage logic

Added the `portForward` option to the `ServerFuncBtn` enumeration to support port forwarding

Added duplicate ID checks to `ServerStore` to prevent data conflicts

* fix(server): Fixed the update logic for redirect IDs in server storage

Prevents updates from being skipped when the ID remains unchanged, ensuring that redirect IDs are mapped correctly

* fix(server): Fixed an issue where existing records were not skipped correctly when updating the redirect ID

lib/data/model/app/menu/server_func.dart

@@ -49,6 +49,7 @@ enum ServerFuncBtn {
     //pkg,
     snippet,
     systemd,
+    portForward,
   ].map((e) => e.index).toList();
 
   IconData get icon => switch (this) {

lib/data/store/server.dart

@@ -175,6 +175,7 @@ class ServerStore extends HiveStore {
     }
 
     for (final spi in ss) {
+      if (get(spi.id) == null) continue;
       if (spi.jumpId != null && idMap.containsKey(spi.jumpId)) {
         final newJumpId = idMap[spi.jumpId]!;
         final newSpi = spi.copyWith(jumpId: newJumpId);