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

app/views/import/rows/_form.html.erb

@@ -28,10 +28,10 @@
                 disabled: row.import.complete? %>
 
           <% if !cell_is_valid?(row, key) %>
-            <span class="absolute right-2 top-1/2 -translate-y-1/2 text-red-500 md:hidden"
+            <span class="absolute right-2 top-1/2 -translate-y-1/2 text-destructive md:hidden"
                   data-action="click->mobile-cell-interaction#toggleErrorMessage"
-                  data-mobile-cell-interaction-target="errorIcon">
-              <%= lucide_icon "alert-circle", class: "w-4 h-4" %>
+              data-mobile-cell-interaction-target="errorIcon">
+              <%= icon "alert-circle", size: "sm", color: "destructive" %>
             </span>
 
             <div class="absolute left-4 right-4 bottom-full mb-2 p-2 bg-red-50 border border-red-200 rounded-lg shadow-lg text-xs text-red-600 hidden md:hidden z-20"