docs: update live demo logic with dumi 2.3 beta (#46805)

* docs: update live demo api with dumi 2.3 beta

* docs: lint fix

* refactor: update naming of demo source

* feat: optimize souce code editor style

* chore: update dumi version

* chore: restore dumi overrides

* ci: setup before lint only for ci

* chore: trigger ci re-run

* chore: bump dumi version

---------

Signed-off-by: lijianan <574980606@qq.com>
Co-authored-by: MadCcc <1075746765@qq.com>
Co-authored-by: lijianan <574980606@qq.com>

.dumirc.ts

@@ -15,7 +15,6 @@ export default defineConfig({
   ssr: process.env.NODE_ENV === 'production' ? {} : false,
   hash: true,
   mfsu: false,
-  live: true,
   crossorigin: {},
   outputPath: '_site',
   favicons: ['https://gw.alipayobjects.com/zos/rmsportal/rlpTLlbMzTNYuZGGCVYM.png'],