ui: scrollbar am body-rand, todo_write custom renderer

wwwroot/css/dashboard.css

@@ -5,7 +5,6 @@
   align-items: center;
   gap: var(--badge-spacing);
   padding: var(--box-padding);
-  margin-block: var(--badge-spacing) var(--box-spacing);
   border-radius: var(--border-radius);
 }
 
@@ -70,6 +69,7 @@
 
 .dashboard-link:last-child {
   margin-left: auto;
+  margin-right: var(--badge-spacing);
 }
 
 .dashboard section {