chore(web): unique ID generation (#9932)

* chore(web): automatically generate unique IDs

* fix: revert changes to Slider

* chore: add test for id store

web/src/lib/components/user-settings-page/partner-settings.svelte

@@ -167,7 +167,6 @@
             <hr class="my-4 border border-gray-200 dark:border-gray-700" />
             <p class="text-xs font-medium my-4">PHOTOS FROM {partner.user.name.toUpperCase()}</p>
             <SettingSwitch
-              id="show-in-timeline"
               title="Show in timeline"
               subtitle="Show photos and videos from this user in your timeline"
               bind:checked={partner.inTimeline}