Support: add a feedback email, rebrand from Donate, tighten privacy copy

src/app/components/AboutModal.tsx

@@ -7,6 +7,7 @@
  * (SOUL.md — local-only, no accounts, no telemetry).
  */
 
+import { FEEDBACK_EMAIL, feedbackMailtoHref } from '../feedback';
 import styles from './AboutModal.module.css';
 
 /** True when the user agent is macOS / iOS — drives the Cmd vs. Ctrl label. */
@@ -64,7 +65,7 @@ export function AboutModal() {
         </p>
         <ul className={styles.list}>
           <li>No account, no sign-in, no server-side storage.</li>
-          <li>No telemetry, no analytics, no tracking of any kind.</li>
+          <li>The app runs no analytics or tracking — no cookies, no telemetry, no profiling.</li>
           <li>
             The only outbound network requests are ones you create: URL-sourced datasets you add
             yourself.
@@ -75,6 +76,18 @@ export function AboutModal() {
           </li>
         </ul>
       </section>
+
+      {/* Feedback */}
+      <section className={styles.section}>
+        <h3 className={styles.heading}>Feedback</h3>
+        <p className={styles.body}>
+          Found a bug or have an idea? Email{' '}
+          <a className={styles.link} href={feedbackMailtoHref()}>
+            {FEEDBACK_EMAIL}
+          </a>
+          .
+        </p>
+      </section>
     </div>
   );
 }