Fix ReferenceError on Reset/backhome when grecaptcha is undefined

[HomesONE]

Problem

In js/looking-glass.js:

```js
if (typeof grecaptcha.reset === "function") {
grecaptcha.reset();
}
```

typeof grecaptcha.reset evaluates grecaptcha.reset first — which dereferences the grecaptcha identifier before typeof is applied to the result. When no reCAPTCHA script is loaded (captcha disabled, or hCaptcha is the configured type and provides the hcaptcha global instead), the identifier is undefined and the expression throws ReferenceError, aborting the click handler mid-execution.

The two affected handlers are the inline form Reset button (line 40) and the #backhome button (line 49). On captcha-disabled deployments the user sees Reset / "Back to home" do nothing on the first click after a query, with a ReferenceError: grecaptcha is not defined in the browser console.

Fix

Guard with the standard typeof idiom for "is this global defined":

```js
if (typeof grecaptcha !== "undefined" && typeof grecaptcha.reset === "function") {
grecaptcha.reset();
}
```

typeof on an undeclared identifier returns the string \"undefined\" without throwing, which is exactly the case we need to handle here.

Impact

• Captcha disabled / hCaptcha configured: Reset and Back-home buttons work again.
• reCAPTCHA enabled: no change — both clauses are true, grecaptcha.reset() still called.