feat: rework to use next and host from single dockerfile

mta-sign-ui/vitest.config.ts

@@ -0,0 +1,17 @@
+import { defineConfig } from 'vitest/config'
+import react from '@vitejs/plugin-react'
+import path from 'path'
+
+export default defineConfig({
+    plugins: [react()],
+    test: {
+        environment: 'jsdom',
+        globals: true,
+        setupFiles: ['./tests/setup.ts'],
+    },
+    resolve: {
+        alias: {
+            '@': path.resolve(__dirname, './'),
+        },
+    },
+})