Pre-launch design sync with Figma spec (#2154)

* Add lookbook + viewcomponent, organize design system file

* Build menu component

* Button updates

* More button fixes

* Replace all menus with new ViewComponent

* Checkpoint: fix tests, all buttons and menus converted

* Split into Link and Button components for clarity

* Button cleanup

* Simplify custom confirmation configuration in views

* Finalize button, link component API

* Add toggle field to custom form builder + Component

* Basic tabs component

* Custom tabs, convert all menu / tab instances in app

* Gem updates

* Centralized icon helper

* Update all icon usage to central helper

* Lint fixes

* Centralize all disclosure instances

* Dialog replacements

* Consolidation of all dialog styles

* Test fixes

* Fix app layout issues, move to component with slots

* Layout simplification

* Flakey test fix

* Fix dashboard mobile issues

* Finalize homepage

* Lint fixes

* Fix shadows and borders in dark mode

* Fix tests

* Remove stale class

* Fix filled icon logic

* Move transparent? to public interface

test/components/previews/toggle_component_preview.rb

@@ -0,0 +1,15 @@
+class ToggleComponentPreview < ViewComponent::Preview
+  # @param disabled toggle
+  def default(disabled: false)
+    render(
+      ToggleComponent.new(
+        id: "toggle-component-id",
+        name: "toggle-component-name",
+        checked: false,
+        disabled: disabled,
+        checked_value: "on",
+        unchecked_value: "off"
+      )
+    )
+  end
+end