feat: add community ui (#52)

Reviewed-on: #52

crates/workspace/src/panels/requests.rs

@@ -0,0 +1,62 @@
+use gpui::{
+    AnyElement, App, AppContext, Context, Entity, EventEmitter, FocusHandle, Focusable,
+    IntoElement, ParentElement, Render, SharedString, Styled, Window,
+};
+use theme::ActiveTheme;
+use ui::dock::{Panel, PanelEvent};
+use ui::{Icon, IconName, Sizable, h_flex};
+
+pub fn init(window: &mut Window, cx: &mut App) -> Entity<RequestsPanel> {
+    cx.new(|cx| RequestsPanel::new(window, cx))
+}
+
+pub struct RequestsPanel {
+    name: SharedString,
+    focus_handle: FocusHandle,
+}
+
+impl RequestsPanel {
+    fn new(_window: &mut Window, cx: &mut App) -> Self {
+        Self {
+            name: "Requests".into(),
+            focus_handle: cx.focus_handle(),
+        }
+    }
+}
+
+impl Panel for RequestsPanel {
+    fn panel_id(&self) -> SharedString {
+        self.name.clone()
+    }
+
+    fn title(&self, cx: &App) -> AnyElement {
+        h_flex()
+            .gap_1p5()
+            .child(
+                Icon::new(IconName::Invite)
+                    .small()
+                    .text_color(cx.theme().icon_muted),
+            )
+            .child(self.name.clone())
+            .into_any_element()
+    }
+}
+
+impl EventEmitter<PanelEvent> for RequestsPanel {}
+
+impl Focusable for RequestsPanel {
+    fn focus_handle(&self, _: &App) -> FocusHandle {
+        self.focus_handle.clone()
+    }
+}
+
+impl Render for RequestsPanel {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        h_flex()
+            .size_full()
+            .justify_center()
+            .text_sm()
+            .text_color(cx.theme().text_muted)
+            .child(self.name.clone())
+    }
+}