Implement Notifications

Co-Authored-By: Marshall Bowers <1486634+maxdeviant@users.noreply.github.com>

crates/ui2/src/prelude.rs

@@ -19,6 +19,24 @@ pub fn ui_size(cx: &mut WindowContext, size: f32) -> Rems {
     rems(*settings.ui_scale * UI_SCALE_RATIO * size)
 }
 
+/// Represents a person with a Zed account's public profile.
+/// All data in this struct should be considered public.
+pub struct PublicActor {
+    pub username: SharedString,
+    pub avatar: SharedString,
+    pub is_contact: bool,
+}
+
+impl PublicActor {
+    pub fn new(username: impl Into<SharedString>, avatar: impl Into<SharedString>) -> Self {
+        Self {
+            username: username.into(),
+            avatar: avatar.into(),
+            is_contact: false,
+        }
+    }
+}
+
 #[derive(Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, EnumIter)]
 pub enum FileSystemStatus {
     #[default]