Revert "refactor(editor): Turn showMessage mixin to composable" (#6243)

Revert "refactor(editor): Turn showMessage mixin to composable (#6081)"

This reverts commit b95fcd7323.

packages/editor-ui/src/views/SignoutView.vue

@@ -2,16 +2,11 @@
 import { VIEWS } from '@/constants';
 import { mapStores } from 'pinia';
 import { useUsersStore } from '@/stores/users.store';
-import { defineComponent } from 'vue';
-import { useToast } from '@/composables';
+import mixins from 'vue-typed-mixins';
+import { showMessage } from '@/mixins/showMessage';
 
-export default defineComponent({
+export default mixins(showMessage).extend({
 	name: 'SignoutView',
-	setup() {
-		return {
-			...useToast(),
-		};
-	},
 	computed: {
 		...mapStores(useUsersStore),
 	},
@@ -21,7 +16,7 @@ export default defineComponent({
 				await this.usersStore.logout();
 				void this.$router.replace({ name: VIEWS.SIGNIN });
 			} catch (e) {
-				this.showError(e, this.$locale.baseText('auth.signout.error'));
+				this.$showError(e, this.$locale.baseText('auth.signout.error'));
 			}
 		},
 	},