feat(web): improve UI/UX for settings pages (#12626)

* fix(web): local date time for buckets

* feat(web): improve UI/UX for setting pages

* search admin settings and icon

* clean up

* fix translation file

* Update web/src/routes/admin/system-settings/+page.svelte

Co-authored-by: Ben <45583362+ben-basten@users.noreply.github.com>

* Update web/src/lib/components/shared-components/settings/setting-accordion.svelte

Co-authored-by: Ben <45583362+ben-basten@users.noreply.github.com>

* better search bar on smaller screen

* lint

* template syntax

---------

Co-authored-by: Jason Rasmussen <jason@rasm.me>
Co-authored-by: Ben <45583362+ben-basten@users.noreply.github.com>

web/src/lib/i18n/en.json

@@ -1080,6 +1080,7 @@
   "search_options": "Search options",
   "search_people": "Search people",
   "search_places": "Search places",
+  "search_settings": "Search settings",
   "search_state": "Search state...",
   "search_tags": "Search tags...",
   "search_timezone": "Search timezone...",