fix: change privacy policy field validation strictly to browser validation

src/about.njk

@@ -121,9 +121,9 @@ pageScripts:
                   type="checkbox"
                   id="privacy-policy"
                   name="privacy-policy"
+                  required
                   aria-required="true"
-                  aria-describedby="privacy-policy-description"
-                >
+                  aria-describedby="privacy-policy-description">
                 <label id="privacy-policy-label" for="privacy-policy">
                   I agree to the site's
                   <a href="/privacy-policy" target="_blank" rel="noopener noreferrer">Privacy Policy</a>.<span class="req-ask">*</span>

src/scripts/contact-form.js

@@ -62,7 +62,6 @@ form.addEventListener("submit", function(event) {
     const phone = document.getElementById("phone").value.trim();
     const contactMethod = document.querySelector('input[name="contact-method"]:checked')?.value;
     const message = document.getElementById("message").value.trim();
-    const privacyAccepted = document.getElementById("privacy-policy").checked;
 
     let hasErrors = false;
 
@@ -124,7 +123,6 @@ form.addEventListener("submit", function(event) {
             message: message,
             url: honeypotField,
             hCaptchaResponse: hCaptchaResponse,
-            privacyAccepted: privacyAccepted
         };
 
         // Send the data to the backend using fetch()