chore(deps): update zwave-js-ui to v9.27.4

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
zwave-js/zwave-js-ui	patch	v9.27.3 -> v9.27.4

This PR updates the version of zwave-js-ui in the snapcraft.yaml file to match the latest GitHub release.

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Release Notes

zwave-js/zwave-js-ui (zwave-js/zwave-js-ui)

### [`v9.27.4`](https://redirect.github.com/zwave-js/zwave-js-ui/releases/tag/v9.27.4): Release 9.27.4 [Compare Source](https://redirect.github.com/zwave-js/zwave-js-ui/compare/v9.27.3...v9.27.4) ##### Bug Fixes - bump zwave-js and zwave-js-server ([#​4024](https://redirect.github.com/zwave-js/zwave-js-ui/issues/4024)) ([9f9fc56](https://redirect.github.com/zwave-js/zwave-js-ui/commit/9f9fc56fa1a459ecc0ff20aad2ce52b61888648d)) - **ui:** vertical scrollbars not visible ([db1b647](https://redirect.github.com/zwave-js/zwave-js-ui/commit/db1b64727294cb482a5f9c7fb4ccaaabe8920328)), closes [#​4014](https://redirect.github.com/zwave-js/zwave-js-ui/issues/4014)

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