fixed typo and cleanup destroyed overlay wrappers

ui/src/components/base/OverlayPanel.svelte

@@ -199,18 +199,14 @@
         // move outside of its current parent
         getHolder().appendChild(wrapper);
 
+        let wrapperCopy = wrapper;
+
         return () => {
             clearTimeout(contentScrollThrottle);
 
             unregisterActivePanel();
 
-            // ensures that no artifacts remains
-            // (currently there is a bug with svelte transition)
-            wrapper?.classList?.add("hidden");
-
-            setTimeout(() => {
-                wrapper?.remove();
-            }, 0);
+            wrapperCopy?.remove();
         };
     });
 </script>

ui/src/components/collections/docs/BatchApiDocs.svelte

@@ -81,7 +81,7 @@
             <a href="/settings" use:link>Dashboard settings</a>.
         </p>
         <p>
-            Because this endpoint process the requests in a single transaction, it could degrade the
+            Because this endpoint process the requests in a single transaction it could degrade the
             performance of your application if not used with proper care and configuration (e.g. too large
             allowed execution timeout, large body size limit, etc.).
         </p>