fix(web): repair dead /v3/logs link on the display hardware-error banner

The "Logs tab" link in the display-settings simulation-mode banner was a
real <a href> to /v3/logs, but no such route has ever existed (log content
is loaded client-side via activeTab, not a dedicated page route) - the link
404'd regardless of the /v3 prefix change. Switch it to the same
activeTab-switching pattern the real nav uses.

web_interface/templates/v3/partials/display.html

@@ -22,7 +22,7 @@
             On Raspberry Pi 5: ensure the library was rebuilt from the latest submodule
             (<code class="bg-yellow-100 px-1 rounded">first_time_install.sh</code>)
             and try adjusting <strong>GPIO Slowdown</strong> (start at 3, reduce if the display looks dim or choppy).
-            Check the <a href="/v3/logs" class="underline font-medium">Logs tab</a> for the full error.
+            Check the <a href="#" @click.prevent="activeTab = 'logs'" class="underline font-medium">Logs tab</a> for the full error.
         </p>
     </div>