feat: chat mute

closes #7

lib/widgets/chat.dart

@@ -17,16 +17,48 @@ class ChatWidget extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final hostMuteList = ndk.lists.getSingleNip51List(
+      Nip51List.kMute,
+      Bip340EventSigner(privateKey: null, publicKey: stream.info.host),
+      forceRefresh: true,
+    );
+    final signer = ndk.accounts.getLoggedAccount()?.signer;
+    final myMuteList =
+        signer != null
+            ? ndk.lists.getSingleNip51List(
+              Nip51List.kMute,
+              signer,
+              forceRefresh: true,
+            )
+            : Future.value(null);
+
     return RxFilter<Nip01Event>(
       filters: [
         Filter(kinds: [1311, 9735], limit: 200, aTags: [stream.aTag]),
       ],
       builder: (ctx, state) {
+        return FutureBuilder(
+          future: Future.wait([hostMuteList, myMuteList]),
+          builder: (ctx, muteState) {
+            final mutedPubkeys =
+                muteState.data
+                    ?.map((e) => e?.pubKeys)
+                    .where((e) => e != null)
+                    .expand((e) => e!)
+                    .map((e) => e.value)
+                    .toSet() ??
+                <String>{};
+
+            final filteredChat =
+                (state ?? [])
+                    .where((e) => !mutedPubkeys.contains(e.pubKey))
+                    .toList();
+
             return Column(
               spacing: 8,
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
-            _TopZappersWidget(events: state ?? []),
+                _TopZappersWidget(events: filteredChat),
                 Expanded(
                   child: SingleChildScrollView(
                     reverse: true,
@@ -34,12 +66,18 @@ class ChatWidget extends StatelessWidget {
                       spacing: 8,
                       crossAxisAlignment: CrossAxisAlignment.start,
                       children:
-                      (state ?? [])
+                          filteredChat
                               .sortedBy((c) => c.createdAt)
                               .map(
                                 (c) => switch (c.kind) {
-                              1311 => ChatMessageWidget(stream: stream, msg: c),
+                                  1311 => ChatMessageWidget(
-                              9735 => _ChatZapWidget(stream: stream, zap: c),
+                                    stream: stream,
+                                    msg: c,
+                                  ),
+                                  9735 => _ChatZapWidget(
+                                    stream: stream,
+                                    zap: c,
+                                  ),
                                   _ => SizedBox.shrink(),
                                 },
                               )
@@ -65,6 +103,8 @@ class ChatWidget extends StatelessWidget {
             );
           },
         );
+      },
+    );
   }
 }