fix: enable enforce-canonical-classes tailwind lint rule (#9427)

## Summary

Enable `better-tailwindcss/enforce-canonical-classes` lint rule and
auto-fix all 611 violations across 173 files. Stacked on #9417.

## Changes

- **What**: Simplify Tailwind classes to canonical forms via `eslint
--fix`:
  - `h-X w-X` → `size-X`
  - `overflow-x-hidden overflow-y-hidden` → `overflow-hidden`
  - and other canonical simplifications
- Enable `enforce-canonical-classes` as `'error'` in eslint config

## Review Focus

Mechanical auto-fix PR — all changes produced by `eslint --fix`. No
visual or behavioral changes; canonical forms are functionally
identical.

**Stack:** #9417 → **this PR** → PR 3 (class order)

Fixes #9300 (partial — 2 of 3 rules)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9427-fix-enable-enforce-canonical-classes-tailwind-lint-rule-31a6d73d365081a49340d7d4640ede45)
by [Unito](https://www.unito.io)

src/platform/workspace/components/dialogs/RemoveMemberDialogContent.vue

@@ -19,14 +19,14 @@
     </div>
 
     <!-- Body -->
-    <div class="px-4 py-4">
+    <div class="p-4">
       <p class="m-0 text-sm text-muted-foreground">
         {{ $t('workspacePanel.removeMemberDialog.message') }}
       </p>
     </div>
 
     <!-- Footer -->
-    <div class="flex items-center justify-end gap-4 px-4 py-4">
+    <div class="flex items-center justify-end gap-4 p-4">
       <Button variant="muted-textonly" @click="onCancel">
         {{ $t('g.cancel') }}
       </Button>