style: Update sub-table background color in style.css and admin-users.html

Author: wajeht

public/style.css

@@ -16,6 +16,7 @@
 	--link-color: #0000ee;
 	--visited-link-color: #6f3788;
 	--border-color: #1a1a1a;
+	--sub-table-background: #f8f9fa;
 }
 
 [data-theme='dark'] {
@@ -35,6 +36,7 @@
 	--checkbox-border: #4a4a4a;
 	--checkbox-check: #ffffff;
 	--button-hover-background: #5a5a5a;
+	--sub-table-background: #2a2a2a;
 }
 
 body {

src/views/pages/admin-users.html

@@ -139,7 +139,7 @@ <h2>📱 Edit User <%= user.name %></h2>
               <tr id="details-<%= user.id %>" style="display: none;">
 
                 <td colspan="8" style="padding: 0; border-bottom: 1px dashed #ddd;">
-                  <div style="padding: 20px; background-color: var(--background-color);">
+                  <div style="padding: 20px; background-color: var(--sub-table-background);">
                     <table style="width: 100%; border-collapse: collapse;">
 
                       <thead>