Rename workspace::Restart action into workspace::Reload (#12672)

Closes https://github.com/zed-industries/zed/issues/12609

Instead of adding some ordering mechanism to the actions, rename the
action so that it's not interfering with the `editor: restart language
server` command.

Before:

![image](https://github.com/zed-industries/zed/assets/2690773/b5e86eda-d766-49fc-a25b-f8b9fdb7b521)

![image](https://github.com/zed-industries/zed/assets/2690773/c5edeb56-12aa-496b-bb6f-dc705cbb9ae3)


After:

![image](https://github.com/zed-industries/zed/assets/2690773/ed30c68d-bfdd-4e00-bb5d-0be52fbe4e16)
![Screenshot 2024-06-05 at 09 46
25](https://github.com/zed-industries/zed/assets/2690773/9fe4eb52-0399-4321-85a9-3b07c11395ce)


Release Notes:

- Improved language server restart command ergonomics by renaming
`workspace::Restart` action into `workspace::Reload` to remove any other
"restart"-worded actions in the list

crates/collab_ui/src/collab_titlebar_item.rs

@@ -686,7 +686,7 @@ impl CollabTitlebarItem {
                         .on_click(|_, cx| {
                             if let Some(auto_updater) = auto_update::AutoUpdater::get(cx) {
                                 if auto_updater.read(cx).status().is_updated() {
-                                    workspace::restart(&Default::default(), cx);
+                                    workspace::reload(&Default::default(), cx);
                                     return;
                                 }
                             }