Show webUI version updated info for first detected update

In case the webUI has never been updated yet, the info dialog was not opened after an update.
This was caused due to the current version always being undefined, since it was never written to the local storage

src/components/util/WebUIUpdateChecker.tsx

@@ -69,6 +69,11 @@ export const WebUIUpdateChecker = () => {
     const newVersion = aboutWebUI?.tag;
     const isSameAsCurrent = !newVersion || !webUIVersion || webUIVersion === newVersion;
 
+    const saveInitialVersion = !webUIVersion && !!newVersion;
+    if (saveInitialVersion) {
+        setWebUIVersion(newVersion);
+    }
+
     if (!isSameAsCurrent && !open) {
         setOpen(true);
     }