Fix casing of OpenZedUrl action (#7045)

This PR updates the casing of the `OpenZedUrl` action to match the [Rust
naming
guidelines](https://rust-lang.github.io/api-guidelines/naming.html).

Release Notes:

- N/A

crates/zed/src/zed.rs

@@ -38,7 +38,7 @@ use workspace::{
     create_and_open_local_file, notifications::simple_message_notification::MessageNotification,
     open_new, AppState, NewFile, NewWindow, Workspace, WorkspaceSettings,
 };
-use zed_actions::{OpenBrowser, OpenSettings, OpenZedURL, Quit};
+use zed_actions::{OpenBrowser, OpenSettings, OpenZedUrl, Quit};
 
 actions!(
     zed,
@@ -201,7 +201,7 @@ pub fn initialize_workspace(app_state: Arc<AppState>, cx: &mut AppContext) {
             .register_action(|_, _: &ToggleFullScreen, cx| {
                 cx.toggle_full_screen();
             })
-            .register_action(|_, action: &OpenZedURL, cx| {
+            .register_action(|_, action: &OpenZedUrl, cx| {
                 cx.global::<Arc<OpenListener>>()
                     .open_urls(&[action.url.clone()])
             })