Rename zed.dev/settings to zed.dev/account (#15636)

This PR renames the links to the `zed.dev/settings` page to the
`zed.dev/account`.

Some of these spots will likely link out to a marketing page later.

Release Notes:

- N/A

crates/language_model/src/provider/cloud.rs

@@ -402,7 +402,7 @@ impl ConfigurationView {
 impl Render for ConfigurationView {
     fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
         const ZED_AI_URL: &str = "https://zed.dev/ai";
-        const ACCOUNT_SETTINGS_URL: &str = "https://zed.dev/settings";
+        const ACCOUNT_SETTINGS_URL: &str = "https://zed.dev/account";
 
         let is_connected = self.state.read(cx).is_connected();
         let plan = self.state.read(cx).user_store.read(cx).current_plan();