v0.12.10

Upgrading

• No host changes. This release only updates build tooling in the lockfile;
  the package's dependencies and peer ranges are unchanged.
• The widget bundle (dist/widget/escalated-widget.js) is unchanged apart
  from its version banner: built from this release and from 0.12.9 with the
  locked dependencies, the two are byte-identical before the version bump, so
  the backends' vendored widgets stay as they are.

Changed

• Dependencies (dev, lock): tailwindcss and @tailwindcss/postcss 4.3.5,
  postcss 8.5.32, autoprefixer 10.6.2 and @vitejs/plugin-vue 6.0.10, within
  the existing ranges (#252).