feat: use hosts mutelist for chat

resolves #70

src/hooks/lists.ts

@@ -0,0 +1,29 @@
+import { useMemo } from "react";
+
+import { RequestBuilder, ReplaceableNoteStore } from "@snort/system";
+import { useRequestBuilder } from "@snort/system-react";
+
+import { MUTED } from "const";
+import { getTagValues } from "utils";
+import { System } from "index";
+
+export function useMutedPubkeys(host?: string, leaveOpen = false) {
+  const mutedSub = useMemo(() => {
+    if (!host) return null;
+    const rb = new RequestBuilder(`muted:${host}`);
+    rb.withOptions({ leaveOpen });
+    rb.withFilter().kinds([MUTED]).authors([host]);
+    return rb;
+  }, [host]);
+
+  const { data: muted } = useRequestBuilder<ReplaceableNoteStore>(
+    System,
+    ReplaceableNoteStore,
+    mutedSub
+  );
+  const mutedPubkeys = useMemo(() => {
+    return new Set(getTagValues(muted?.tags ?? [], "p"));
+  }, [muted]);
+
+  return mutedPubkeys;
+}