Add arc icon, replace settings icon (#1469)

* Add icons for arc and settings

* Update arc icon in toolbar

* Use settings icon instead of gear for settings

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/components/UserSidebarMenu.tsx

@@ -117,7 +117,7 @@ const UserSidebarMenu = ({ user }: { user?: User }) => {
               <div className="p-4 flex flex-col gap-2">
                 <ActionButton
                   Element="button"
-                  icon={{ icon: 'gear' }}
+                  icon={{ icon: 'settings' }}
                   className="border-transparent dark:border-transparent hover:bg-transparent"
                   onClick={() => {
                     // since /settings is a nested route the sidebar doesn't close