fix: stacked inline fieldset styling (#1310)

Author: lukasvinclav

src/unfold/static/unfold/css/styles.css

@@ -17,7 +17,7 @@ <h2 id="{{ inline_admin_formset.formset.prefix }}-heading" class="inline-heading
         {{ inline_admin_formset.formset.management_form }}
         {% include "unfold/helpers/messages/error.html" with errors=inline_admin_formset.formset.non_form_errors %}
 
-        <div class="border border-base-200 mb-6 overflow-hidden rounded-default shadow-xs w-full dark:border-base-800 *:border-t *:first:border-t-0 *:border-base-200 dark:*:border-base-800"
+        <div class="border border-base-200 mb-6 overflow-hidden rounded-default shadow-xs w-full dark:border-base-800 *:border-t first-of-type:border-t-0 *:border-base-200 dark:*:border-base-800"
              {% if inline_admin_formset.opts.ordering_field %}
                  data-ordering-field="{{ inline_admin_formset.opts.ordering_field }}" x-on:end="sortRecords" x-sort.ghost
              {% endif %}>

src/unfold/templates/admin/edit_inline/stacked.html

@@ -2,9 +2,15 @@
 
 <fieldset class="module{% if fieldset.classes %} {{ fieldset.classes }}{% endif %}" {% if stacked != 1 %}x-show="activeTab == 'general'"{% endif %}>
     {% if fieldset.name and "tab" not in fieldset.classes %}
-        <h2 class="bg-base-100 font-semibold mb-6 px-4 py-3 rounded-default text-font-important-light text-sm 2xl:-mx-4 dark:bg-white/[.02] dark:text-font-important-dark">
-            {{ fieldset.name }}
-        </h2>
+        {% if stacked == 1 %}
+            <h2 class="bg-base-50 border-b border-base-200 border-t border-dashed font-semibold text-font-important-light px-3 py-2 dark:text-font-important-dark dark:bg-white/[.02] dark:border-base-800">
+                {{ fieldset.name }}
+            </h2>
+        {% else %}
+            <h2 class="bg-base-100 font-semibold mb-6 px-4 py-3 rounded-default text-font-important-light text-sm 2xl:-mx-4 dark:bg-white/[.02] dark:text-font-important-dark">
+                {{ fieldset.name }}
+            </h2>
+        {% endif %}
     {% endif %}
 
     {% if fieldset.description %}

src/unfold/templates/admin/includes/fieldset.html

@@ -63,7 +63,7 @@ <h1 class="font-semibold mb-10">
                     {% url 'admin_password_reset' as password_reset_url %}
 
                     <div class="submit-row">
-                        <button type="submit" class="bg-primary-600 border border-transparent flex flex-row font-semibold group items-center justify-center py-2 rounded-default text-sm text-white w-full">
+                        <button type="submit" class="bg-primary-600 border border-transparent cursor-pointer flex flex-row font-semibold group items-center justify-center py-2 rounded-default text-sm text-white w-full">
                             {% translate 'Log in' %}
 
                             <span class="material-symbols-outlined ml-2 relative right-0 text-base transition-all group-hover:-right-1">arrow_forward</span>