feat: remote printer (#11231)

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/lib/models/file_model.dart

@@ -30,8 +30,15 @@ enum SortBy {
 class JobID {
   int _count = 0;
   int next() {
-    _count++;
-    return _count;
+    String v = bind.mainGetCommonSync(key: 'transfer-job-id');
+    try {
+      return int.parse(v);
+    } catch (e) {
+      // unreachable. But we still handle it to make it safe.
+      // If we return -1, we have to check it in the caller.
+      _count++;
+      return _count;
+    }
   }
 }