feat: space opus

Closes #833

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/models/space/item.dart

@@ -1,3 +1,4 @@
+import 'package:PiliPlus/models/space/filter.dart';
 import 'package:json_annotation/json_annotation.dart';
 
 part 'item.g.dart';
@@ -56,6 +57,7 @@ class SpaceItem {
   int? iconType;
   @JsonKey(name: 'publish_time_text')
   String? publishTimeText;
+  List<SpaceTabFilter>? filter;
 
   SpaceItem({
     this.title,
@@ -92,6 +94,7 @@ class SpaceItem {
     this.viewContent,
     this.iconType,
     this.publishTimeText,
+    this.filter,
   });
 
   factory SpaceItem.fromJson(Map<String, dynamic> json) => _$ItemFromJson(json);