WebUI: disallow unnecessary quotes in property name

Those two forms are the same and from now on we enforce to one style.

PR #22051.

src/webui/www/private/editwebseed.html

@@ -36,9 +36,9 @@
                 fetch("api/v2/torrents/editWebSeed", {
                         method: "POST",
                         body: new URLSearchParams({
-                            "hash": new URI().getData("hash"),
-                            "origUrl": origUrl,
-                            "newUrl": encodeURIComponent($("url").value.trim())
+                            hash: new URI().getData("hash"),
+                            origUrl: origUrl,
+                            newUrl: encodeURIComponent($("url").value.trim())
                         })
                     })
                     .then((response) => {