Improve dark mode styles across multiple pages (#2125)

* fix: improve dark mode readability across the app

* fix: improve dark mode support for asset percentage text

* fix: apply suggested patch for theme-related improvements

* chore: apply PR feedback – remove dark:, align with design tokens, update form builder

* chore: revert background token and restore original style for visual consistency

* chore: remove unnecessary class attributes from form fields using builder

* refactor: move number_field and date_field into metaprogramming block

* refactor: replace bg-divider-adaptive divs with <hr> and border-secondary

* fix: apply requested changes and linting fixes

app/views/rules/_rule.html.erb

@@ -22,7 +22,7 @@
       <span class="px-2 py-1 border border-alpha-black-200 rounded-full">
         <% if rule.actions.first.value && rule.actions.first.options %>
           <%= rule.actions.first.executor.label %> to <%= rule.actions.first.value_display %>
-        <% else%>
+        <% else %>
           <%= rule.actions.first.executor.label %>
         <% end %>
       </span>