ui: Multiple inventories support

- Added scrollable container for inventories
- Fixed slots being visibly hovered when dragging items

src/lib.rs

@@ -6,7 +6,7 @@ pub mod ui;
 #[cfg(test)]
 mod tests;
 
-use bevy::prelude::*;
+use bevy::{prelude::*, ui_widgets::ScrollbarPlugin};
 use leafwing_input_manager::prelude::*;
 use serde::{Deserialize, Serialize};
 
@@ -86,6 +86,7 @@ impl Plugin for ExpeditionPlugin {
         app.add_plugins((
                 input::InputAssetPlugin::<InputAction>::default(),
                 input::InputAssetPlugin::<UiAction>::default(),
+                ScrollbarPlugin,
             ))
             .init_state::<GameState>()
             .insert_resource(ui::WindowSize::default())