Chore: Purge styles of the legacy `message` template (#28126)

apps/meteor/.eslintcache

apps/meteor/app/analytics/client/index.ts

apps/meteor/app/analytics/server/index.ts

apps/meteor/app/apps/server/bridges/index.ts

apps/meteor/app/apps/server/converters/index.ts

apps/meteor/app/cas/client/index.ts

apps/meteor/app/cas/server/index.ts

apps/meteor/app/channel-settings/client/index.ts

apps/meteor/app/channel-settings/index.js

apps/meteor/app/channel-settings/server/index.ts

apps/meteor/app/colors/client/index.ts

apps/meteor/app/colors/server/index.ts

apps/meteor/app/crowd/client/index.ts

apps/meteor/app/crowd/server/index.ts

apps/meteor/app/custom-sounds/client/index.ts

apps/meteor/app/custom-sounds/server/index.ts

apps/meteor/app/custom/client/index.js

apps/meteor/app/custom/server/index.js

apps/meteor/app/discussion/client/index.ts

apps/meteor/app/discussion/server/index.ts