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

* refactor(editor): move $getExecutionError from showMessages mixin to pushConnection (it is used there only)

* refactor(editor): resolve showMessage mixin methods

* fix(editor): use composable instead of mixin

* fix(editor): resolve conflicts

* fix(editor): replace clearAllStickyNotifications

* fix(editor): replace confirmMessage

* fix(editor): replace confirmMessage

* fix(editor): replace confirmMessage

* fix(editor): remove last confirmMessage usage

* fix(editor): remove $prompt usage

* fix(editor): remove $show methods

* fix(editor): lint fix

* fix(editor): lint fix

* fix(editor): fixes after review

packages/editor-ui/src/components/__tests__/ExecutionsList.test.ts

@@ -10,7 +10,6 @@ import ExecutionsList from '@/components/ExecutionsList.vue';
 import { externalHooks } from '@/mixins/externalHooks';
 import { genericHelpers } from '@/mixins/genericHelpers';
 import { executionHelpers } from '@/mixins/executionsHelpers';
-import { showMessage } from '@/mixins/showMessage';
 import { i18nInstance } from '@/plugins/i18n';
 import type { IWorkflowDb } from '@/Interface';
 import type { IExecutionsSummary } from 'n8n-workflow';
@@ -73,7 +72,7 @@ const renderOptions = {
 	}),
 	i18n: i18nInstance,
 	stubs: ['font-awesome-icon'],
-	mixins: [externalHooks, genericHelpers, executionHelpers, showMessage],
+	mixins: [externalHooks, genericHelpers, executionHelpers],
 };
 
 function TelemetryPlugin(vue: typeof Vue): void {