add Divider entity and start to change settings sidebar of entities

src/app/components.d.ts

src/app/helpers/images.ts

src/app/interfaces/entities.ts

src/app/interfaces/environment.ts

src/app/stores/websocket.ts

src/components/CreateEntityMenu.vue

src/components/entities/image/ImagePositionMenu.vue

src/components/entities/image/ImageStateMenu.vue

src/components/entities/share/EntityTitle.vue

src/components/entities/share/TextFontMenu.vue

src/components/entities/text/TextPositionMenu.vue

src/modules/PageBackgroundMenu.vue

src/modules/entities/DividerItem.vue

src/modules/entities/EntitiesList.vue

src/modules/entities/EntityItem.vue

src/modules/entities/ImageItem.vue

src/modules/entities/TextItem.vue

src/modules/entities/menu/DividerMenu.vue

src/modules/entities/menu/ImageMenu.vue

src/modules/entities/menu/TextMenu.vue