replace global PersonRegistry with per-view person directories

crates/workspace/src/sidebar/mod.rs

@@ -13,6 +13,7 @@ use gpui::{
 use instant::Duration;
 use nip29::{Group, GroupKey, GroupsEvent, GroupsRegistry};
 use nostr_sdk::prelude::*;
+use person::Directory;
 use smallvec::{SmallVec, smallvec};
 use state::{FIND_DELAY, NostrRegistry, StateEvent};
 use theme::{ActiveTheme, TABBAR_HEIGHT, TextStyle, Typeset as _};
@@ -61,6 +62,8 @@ pub struct Sidebar {
     contacts_open: bool,
     /// The signed-in user's contacts, loaded when the contact picker opens.
     contacts: Option<Vec<PublicKey>>,
+    /// Person directory for contacts, search hits, and group members
+    directory: Entity<Directory>,
     /// Contacts selected in the contact picker.
     selected_contacts: HashSet<PublicKey>,
     /// Scroll state of the contact picker's list.
@@ -196,6 +199,7 @@ impl Sidebar {
             chats_open: None,
             contacts_open: false,
             contacts: None,
+            directory: Directory::new(cx),
             selected_contacts: HashSet::new(),
             contacts_scroll: UniformListScrollHandle::new(),
             requests_open: false,