Add a way to clear activity indicator (#30156)

Follow-up of https://github.com/zed-industries/zed/pull/30015

* Restyles the dismiss and close buttons a bit: change the dismiss icon
and add tooltips with the bindings to both
* Allows ESC to clear any status that's in the activity indicator now,
if all notifications are cleared: this won't suppress any further status
additions though, so statuses may resurface later

Release Notes:

- Added a way to clear activity indicator

crates/collab_ui/src/notification_panel.rs

@@ -22,6 +22,7 @@ use ui::{
     Avatar, Button, Icon, IconButton, IconName, Label, Tab, Tooltip, h_flex, prelude::*, v_flex,
 };
 use util::{ResultExt, TryFutureExt};
+use workspace::SuppressNotification;
 use workspace::notifications::{
     Notification as WorkspaceNotification, NotificationId, SuppressEvent,
 };
@@ -823,11 +824,19 @@ impl Render for NotificationToast {
             .child(Label::new(self.text.clone()))
             .child(
                 IconButton::new("close", IconName::Close)
+                    .tooltip(|window, cx| Tooltip::for_action("Close", &menu::Cancel, window, cx))
                     .on_click(cx.listener(|_, _, _, cx| cx.emit(DismissEvent))),
             )
             .child(
-                IconButton::new("suppress", IconName::XCircle)
-                    .tooltip(Tooltip::text("Do not show until restart"))
+                IconButton::new("suppress", IconName::SquareMinus)
+                    .tooltip(|window, cx| {
+                        Tooltip::for_action(
+                            "Do not show until restart",
+                            &SuppressNotification,
+                            window,
+                            cx,
+                        )
+                    })
                     .on_click(cx.listener(|_, _, _, cx| cx.emit(SuppressEvent))),
             )
             .on_click(cx.listener(|this, _, window, cx| {