feat(core): Add MFA (#4767)

https://linear.app/n8n/issue/ADO-947/sync-branch-with-master-and-fix-fe-e2e-tets

---------

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/editor-ui/src/mixins/genericHelpers.ts

@@ -80,5 +80,16 @@ export const genericHelpers = defineComponent({
 				this.loadingService = null;
 			}
 		},
+		isRedirectSafe() {
+			const redirect = this.getRedirectQueryParameter();
+			return redirect.startsWith('/');
+		},
+		getRedirectQueryParameter() {
+			let redirect = '';
+			if (typeof this.$route.query.redirect === 'string') {
+				redirect = decodeURIComponent(this.$route.query.redirect);
+			}
+			return redirect;
+		},
 	},
 });