feat: Add vite legacy plugin to provide polyfills for older browsers

packages/editor-ui/.browserslistrc

@@ -1,3 +1,2 @@
-> 1%
-last 2 versions
-not ie <= 8
+defaults and fully supports es6-module
+maintained node versions

packages/editor-ui/package.json

@@ -94,6 +94,7 @@
     "@types/lodash-es": "^4.17.6",
     "@types/luxon": "^3.2.0",
     "@types/uuid": "catalog:",
+    "@vitejs/plugin-legacy": "^6.0.0",
     "@vitest/coverage-v8": "catalog:frontend",
     "miragejs": "^0.1.48",
     "unplugin-icons": "^0.19.0",

packages/editor-ui/vite.config.mts

@@ -1,4 +1,5 @@
 import vue from '@vitejs/plugin-vue';
+import legacy from '@vitejs/plugin-legacy';
 import { resolve } from 'path';
 import { defineConfig, mergeConfig } from 'vite';
 
@@ -54,6 +55,7 @@ const plugins = [
 		],
 	}),
 	vue(),
+	legacy(),
 ];
 
 const { RELEASE: release } = process.env;