feat: show facepill on tabpanel

crates/app/src/views/chat/message.rs

@@ -35,7 +35,7 @@ impl RenderOnce for Message {
             .border_l_2()
             .border_color(cx.theme().background)
             .hover(|this| {
-                this.bg(cx.theme().accent.step(cx, ColorScaleStep::TWO))
+                this.bg(cx.theme().accent.step(cx, ColorScaleStep::ONE))
                     .border_color(cx.theme().accent.step(cx, ColorScaleStep::NINE))
             })
             .child(

crates/app/src/views/chat/mod.rs

@@ -386,8 +386,15 @@ impl Panel for ChatPanel {
         self.id.clone()
     }
 
-    fn panel_metadata(&self) -> Option<Metadata> {
-        None
+    fn panel_facepile(&self, cx: &WindowContext) -> Option<Vec<String>> {
+        Some(
+            self.room
+                .read(cx)
+                .members
+                .iter()
+                .map(|member| member.avatar())
+                .collect(),
+        )
     }
 
     fn title(&self, _cx: &WindowContext) -> AnyElement {