Remove placeholders and finalize contact details for launch

- Replace all `[PLACEHOLDER]` entries across legal pages with actual values
- Update privacy policy with ICO registration status and service provider details (Ionos, Vonage, OneSignal)
- Finalize contact email as `hello@fuel-alert.co.uk` throughout legal pages and footer
- Update legal layout to use full landing nav with auth/guest actions
- Add Umami analytics script to main app layout
- Remove "Fleet" nav link from landing navigation
- Add feature test to enforce no placeholders and correct contact domain remain in legal pages

resources/views/legal/cookies.blade.php

@@ -70,9 +70,8 @@
         </div>
 
         <p class="text-sm text-zinc-600">
-            <strong>[PLACEHOLDER:</strong> Update the table above if any cookie names change. If a
-            marketing tool is added in future, a Marketing row will be added here and consent will
-            be requested before it loads.<strong>]</strong>
+            If we add a marketing or advertising tool in future, a Marketing row will be added to the
+            table above and your consent will be requested before it loads.
         </p>
     </section>
 
@@ -106,7 +105,7 @@
         <h2 class="font-display text-2xl font-bold text-zinc-900">5. Contact</h2>
         <p>
             Questions about cookies? Email
-            <a href="mailto:[PLACEHOLDER: hello@fuelalert.co.uk]" class="text-accent underline">[PLACEHOLDER: hello@fuelalert.co.uk]</a>.
+            <a href="mailto:hello@fuel-alert.co.uk" class="text-accent underline">hello@fuel-alert.co.uk</a>.
         </p>
     </section>
 </x-layouts.legal>