web/saving-handler: destructure params, reuse request if passed

web/src/components/save/Omnibox.svelte

@@ -79,7 +79,7 @@
 
             if (!isBotCheckOngoing) {
                 await tick(); // wait for button to render
-                savingHandler($link);
+                savingHandler({ url: $link });
             }
         }
     };
@@ -98,7 +98,7 @@
         }
 
         if (e.key === "Enter" && validLink($link) && isFocused) {
-            savingHandler($link);
+            savingHandler({ url: $link });
         }
 
         if (["Escape", "Clear"].includes(e.key) && isFocused) {

web/src/components/save/buttons/DownloadButton.svelte

@@ -58,7 +58,7 @@
     {disabled}
     on:click={() => {
         hapticSwitch();
-        savingHandler(url);
+        savingHandler({ url });
     }}
     aria-label={buttonAltText}
 >