Extract UI elements from storybook into new ui crate (#3008)

This PR extracts the various UI elements from the `storybook` crate into
a new `ui` library crate.

Release Notes:

- N/A

crates/ui/src/prelude.rs

@@ -0,0 +1,55 @@
+#[derive(Default, PartialEq)]
+pub enum ButtonVariant {
+    #[default]
+    Ghost,
+    Filled,
+}
+
+#[derive(Default, PartialEq)]
+pub enum InputVariant {
+    #[default]
+    Ghost,
+    Filled,
+}
+
+#[derive(Default, PartialEq, Clone, Copy)]
+pub enum Shape {
+    #[default]
+    Circle,
+    RoundedRectangle,
+}
+
+#[derive(Default, PartialEq, Clone, Copy)]
+pub enum InteractionState {
+    #[default]
+    Enabled,
+    Hovered,
+    Active,
+    Focused,
+    Dragged,
+    Disabled,
+}
+
+impl InteractionState {
+    pub fn if_enabled(&self, enabled: bool) -> Self {
+        if enabled {
+            *self
+        } else {
+            InteractionState::Disabled
+        }
+    }
+}
+
+#[derive(Default, PartialEq)]
+pub enum SelectedState {
+    #[default]
+    Unselected,
+    PartiallySelected,
+    Selected,
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub enum ToggleState {
+    Toggled,
+    NotToggled,
+}