chore: bump stylelint and remove unused css (#33887)

apps/meteor/client/views/meet/styles.css

...eteor/client/views/omnichannel/ExternalFrameContainer.tsx

apps/meteor/client/views/room/body/DropTargetOverlay.tsx

apps/meteor/client/views/room/composer/ComposerBoxPopup.tsx

...or/client/views/room/composer/ComposerBoxPopupPreview.tsx

...ssageBoxFormattingToolbar/MessageBoxFormattingToolbar.tsx

...meteor/client/views/root/MainLayout/LayoutWithSidebar.tsx

...teor/client/views/root/MainLayout/LayoutWithSidebarV2.tsx

.../client/views/root/MainLayout/TwoFactorAuthSetupCheck.tsx

apps/meteor/package.json

ee/packages/pdf-worker/.storybook/preview.tsx

packages/gazzodown/.storybook/preview.tsx

packages/livechat/.stylelintrc.json

packages/livechat/package.json

packages/livechat/src/components/Alert/styles.scss

packages/livechat/src/components/Avatar/styles.scss

packages/livechat/src/components/Button/styles.scss

packages/livechat/src/components/ButtonGroup/styles.scss

packages/livechat/src/components/Calls/styles.scss

...vechat/src/components/Composer/ComposerAction/styles.scss