fix: enable enforce-consistent-class-order tailwind lint rule (#9428)

## Summary

Enable `better-tailwindcss/enforce-consistent-class-order` lint rule and
auto-fix all 1027 violations across 263 files. Stacked on #9427.

## Changes

- **What**: Sort Tailwind classes into consistent order via `eslint
--fix`
- Enable `enforce-consistent-class-order` as `'error'` in eslint config
- Purely cosmetic reordering — no behavioral or visual changes

## Review Focus

Mechanical auto-fix PR — all changes are class reordering only. This is
the largest diff but lowest risk since it changes no class names, only
their order.

**Stack:** #9417 → #9427 → **this PR**

Fixes #9300 (partial — 3 of 3 rules)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9428-fix-enable-enforce-consistent-class-order-tailwind-lint-rule-31a6d73d3650811c9065f5178ba3e724)
by [Unito](https://www.unito.io)

src/components/common/DropdownItem.vue

@@ -22,7 +22,7 @@ defineProps<{ itemClass: string; contentClass: string; item: MenuItem }>()
 <template>
   <DropdownMenuSeparator
     v-if="item.separator"
-    class="h-px bg-border-subtle m-1"
+    class="m-1 h-px bg-border-subtle"
   />
   <DropdownMenuSub v-else-if="item.items">
     <DropdownMenuSubTrigger
@@ -58,7 +58,7 @@ defineProps<{ itemClass: string; contentClass: string; item: MenuItem }>()
     {{ item.label }}
     <div
       v-if="item.new"
-      class="ml-auto bg-primary-background rounded-full text-xxs font-bold px-1 flex leading-none items-center"
+      class="ml-auto flex items-center rounded-full bg-primary-background px-1 text-xxs leading-none font-bold"
       v-text="t('contextMenu.new')"
     />
   </DropdownMenuItem>