Add ability to hide status bar (#39430)

This pull request adds the ability to configure the setting to hide or
show the status bar, as described in discussion:
https://github.com/zed-industries/zed/discussions/38591

The original [PR
#38974](https://github.com/zed-industries/zed/pull/38974#issuecomment-3362020879)
was merged but reverted due to hidden conflicts. As per @ConradIrwin 's
[request](https://github.com/zed-industries/zed/pull/38974#issuecomment-3362020879),
I am recreating the PR on top of updated main branch.

Release Notes:

- Added an experimental setting `"status_bar": { "experimental.show":
false}` to hide the status bars.

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/language_selector/src/active_buffer_language.rs

@@ -1,11 +1,11 @@
-use editor::{Editor, EditorSettings};
+use editor::Editor;
 use gpui::{
     Context, Entity, IntoElement, ParentElement, Render, Subscription, WeakEntity, Window, div,
 };
 use language::LanguageName;
 use settings::Settings as _;
 use ui::{Button, ButtonCommon, Clickable, FluentBuilder, LabelSize, Tooltip};
-use workspace::{StatusItemView, Workspace, item::ItemHandle};
+use workspace::{StatusBarSettings, StatusItemView, Workspace, item::ItemHandle};
 
 use crate::{LanguageSelector, Toggle};
 
@@ -40,10 +40,7 @@ impl ActiveBufferLanguage {
 
 impl Render for ActiveBufferLanguage {
     fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
-        if !EditorSettings::get_global(cx)
-            .status_bar
-            .active_language_button
-        {
+        if !StatusBarSettings::get_global(cx).active_language_button {
             return div();
         }