message: Update wysiwig flag description
diff: @@ -306,7 +306,7 @@ export const SETTINGS: {[setting: string]: ISetting} = {
  "feature_wysiwyg_composer": {
  isFeature: true,
  labsGroup: LabGroup.Messaging,
  - displayName: _td("Wysiwyg composer (under active development)"),
  + displayName: _td("Wysiwyg composer (plain text mode coming soon) (under active development)"),
  supportedLevels: LEVELS_FEATURE,
  default: false,
  },
  