Fix small bugs in UI (#786)

* chore: added `rel="noopener noreferrer"` to external links for improved security on homepage

* fix: reused variable name

* feat: make the item table use a link instead of a click event

* fix: pagination now shows correct page if loading page that isnt 1

* fix: make save button sticky again on item edit page

* fix: adjust sticky header positioning based on whether legacy header is enabled

* fix: navigate to homepage on unauthorized request in useUserApi function

* fix: enhance link handling in DetailsSection

* fix: improve markdown rendering, don't add big breaks between lines, make the gap smaller and dont have a trailing newline

* fix: use secondary colour as switch secondary colour so its more visible against bg

* fix: call refresh methods on location and label stores during component mount for better data consistency

* fix: loading indicators

* fix: convert detail.text to string for correct URL handling in DetailsSection component

* fix: use replace instead of splice to remove newline at end of markdown

* fix: use css vars for header height

frontend/pages/items.vue

@@ -521,7 +521,7 @@
         :items-per-page="pageSize"
         :total="total"
         :sibling-count="2"
-        :default-page="1"
+        :default-page="page"
         class="flex justify-center p-2"
         @update:page="page = $event"
       >