refactor: use modern tailwindcss features

src/components/users/AddUserModal.svelte

@@ -115,7 +115,7 @@
               class="flex-shrink-0 flex items-center justify-center size-12 rounded-full bg-blue-100 sm:mx-0 sm:h-10 sm:w-10"
             >
               <svg
-                class="h-6 w-6 text-blue-600"
+                class="size-6 text-blue-600"
                 fill="currentColor"
                 width="24"
                 height="24"

src/components/users/UserDetail.svelte

@@ -192,7 +192,7 @@
 					name="enabled"
 					type="checkbox"
 					checked={editable_userdata.enabled}
-					class="focus:ring-indigo-500 h-4 w-4 text-indigo-600 border-gray-300 rounded"
+					class="focus:ring-indigo-500 size-4 text-indigo-600 border-gray-300 rounded"
 				/>
 				{$_("set-the-user-active-inactive")}
 			</p>