Remove old ui and storybook crates (#3125)

This PR deletes the old `ui` and `storybook` crates in favor of their
newer variants that we'll be landing to `main` in the near future.

### Motivation

These crates are based off the old version of GPUI 2 (the `gpui2`
crate).

At this point we have since transitioned to the new version of GPUI 2
(the `gpui3` crate, currently still on the `gpui2` branch).

Having both copies around is confusing, so the old ones are going the
way of the dinosaurs.

Release Notes:

- N/A

crates/ui/src/components.rs

@@ -1,163 +0,0 @@
-mod assistant_panel;
-mod breadcrumb;
-mod buffer;
-mod chat_panel;
-mod collab_panel;
-mod command_palette;
-mod context_menu;
-mod editor_pane;
-mod facepile;
-mod icon_button;
-mod keybinding;
-mod language_selector;
-mod list;
-mod multi_buffer;
-mod palette;
-mod panel;
-mod panes;
-mod player_stack;
-mod project_panel;
-mod recent_projects;
-mod status_bar;
-mod tab;
-mod tab_bar;
-mod terminal;
-mod theme_selector;
-mod title_bar;
-mod toast;
-mod toolbar;
-mod traffic_lights;
-mod workspace;
-
-pub use assistant_panel::*;
-pub use breadcrumb::*;
-pub use buffer::*;
-pub use chat_panel::*;
-pub use collab_panel::*;
-pub use command_palette::*;
-pub use context_menu::*;
-pub use editor_pane::*;
-pub use facepile::*;
-pub use icon_button::*;
-pub use keybinding::*;
-pub use language_selector::*;
-pub use list::*;
-pub use multi_buffer::*;
-pub use palette::*;
-pub use panel::*;
-pub use panes::*;
-pub use player_stack::*;
-pub use project_panel::*;
-pub use recent_projects::*;
-pub use status_bar::*;
-pub use tab::*;
-pub use tab_bar::*;
-pub use terminal::*;
-pub use theme_selector::*;
-pub use title_bar::*;
-pub use toast::*;
-pub use toolbar::*;
-pub use traffic_lights::*;
-pub use workspace::*;
-
-// Nate: Commenting this out for now, unsure if we need it.
-
-// use std::marker::PhantomData;
-// use std::rc::Rc;
-
-// use gpui2::elements::div;
-// use gpui2::interactive::Interactive;
-// use gpui2::platform::MouseButton;
-// use gpui2::{ArcCow, Element, EventContext, IntoElement, ParentElement, ViewContext};
-
-// struct ButtonHandlers<V, D> {
-//     click: Option<Rc<dyn Fn(&mut V, &D, &mut EventContext<V>)>>,
-// }
-
-// impl<V, D> Default for ButtonHandlers<V, D> {
-//     fn default() -> Self {
-//         Self { click: None }
-//     }
-// }
-
-// #[derive(Element)]
-// pub struct Button<V: 'static, D: 'static> {
-//     handlers: ButtonHandlers<V, D>,
-//     label: Option<ArcCow<'static, str>>,
-//     icon: Option<ArcCow<'static, str>>,
-//     data: Rc<D>,
-//     view_type: PhantomData<V>,
-// }
-
-// // Impl block for buttons without data.
-// // See below for an impl block for any button.
-// impl<V: 'static> Button<V, ()> {
-//     fn new() -> Self {
-//         Self {
-//             handlers: ButtonHandlers::default(),
-//             label: None,
-//             icon: None,
-//             data: Rc::new(()),
-//             view_type: PhantomData,
-//         }
-//     }
-
-//     pub fn data<D: 'static>(self, data: D) -> Button<V, D> {
-//         Button {
-//             handlers: ButtonHandlers::default(),
-//             label: self.label,
-//             icon: self.icon,
-//             data: Rc::new(data),
-//             view_type: PhantomData,
-//         }
-//     }
-// }
-
-// // Impl block for button regardless of its data type.
-// impl<V: 'static, D: 'static> Button<V, D> {
-//     pub fn label(mut self, label: impl Into<ArcCow<'static, str>>) -> Self {
-//         self.label = Some(label.into());
-//         self
-//     }
-
-//     pub fn icon(mut self, icon: impl Into<ArcCow<'static, str>>) -> Self {
-//         self.icon = Some(icon.into());
-//         self
-//     }
-
-//     pub fn on_click(
-//         mut self,
-//         handler: impl Fn(&mut V, &D, &mut EventContext<V>) + 'static,
-//     ) -> Self {
-//         self.handlers.click = Some(Rc::new(handler));
-//         self
-//     }
-// }
-
-// pub fn button<V>() -> Button<V, ()> {
-//     Button::new()
-// }
-
-// impl<V: 'static, D: 'static> Button<V, D> {
-//     fn render(
-//         &mut self,
-//         view: &mut V,
-//         cx: &mut ViewContext<V>,
-//     ) -> impl IntoElement<V> + Interactive<V> {
-//         // let colors = &cx.theme::<Theme>().colors;
-
-//         let button = div()
-//             // .fill(colors.error(0.5))
-//             .h_4()
-//             .children(self.label.clone());
-
-//         if let Some(handler) = self.handlers.click.clone() {
-//             let data = self.data.clone();
-//             button.on_mouse_down(MouseButton::Left, move |view, event, cx| {
-//                 handler(view, data.as_ref(), cx)
-//             })
-//         } else {
-//             button
-//         }
-//     }
-// }