[QoL] tag cleanup

[gbowne1]

1. Add a permissions policy

<meta http-equiv="Permissions-Policy" content="geolocation=(), microphone=(), camera=()">

2. Fixing it so that numbers don't act as telephone/mobile dialing.

<meta name="format-detection" content="telephone=no">

3. Add support for legacy mobile browsers

<meta name="HandheldFriendly" content="True">

4. Add author information

<meta name="author" content="Gregory Bowne">

5. wrong tag for JSON-LD.

<link rel="alternate" type="application/ld+json" href="../structured-data.json" />

should be

<script type="application/ld+json">
  { ... }
</script>

6. Hardcoded copyright date, use JS logic to update

7. No Content Security Policy tag

add something like: <meta http-equiv="Content-Security-Policy"...>

8. No lazy loading for non-critical images

add a loading="lazy" to image tags that aren't critical like footer images

9. redundant nav role

The

already implies role="navigation", so role="navigation" is redundant.

10. Modal ARIA

For modals and dialogs, you may want to add role="dialog" and aria-modal="true" for better a11y.
Modals should have proper aria-labelledby attributes. Make sure focus is trapped within the modal when it is open.

11. Autocomplete password issue

For sensitive fields (username, password), we may want to add autocomplete="off" or a more specific value (e.g., autocomplete="username", autocomplete="current-password") to prevent browser autofill issues.

12. Duplicate "type" attriute in

<link rel="icon" type="image/png" href="assets/logos/favicon.png" type="image/x-icon" />

remove one.

13. Ensure the manifest.json and icon tags have the same path

14. Obsolete as browsers no longer need this.

15. theme toggle doesn't have any ARIA descriptives

`<button id="themeToggle" ...> this also needs proper icon classes

16. commented out icon is wrong HTML syntax use

<!-- <link rel="icon" sizes="96x96" href="assets/logos/favicon-96x96.png" /> -->

17. Since we use Bootstrap 5 features like modals we need the JS CDN link

<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-..." crossorigin="anonymous"></script>