fix(templates): put back args to watch in dev (#4033)

src/templates.ts

@@ -51,8 +51,7 @@ export function getTemplates(options: ModuleOptions, uiConfig: Record<string, an
         }
 
         // For local development, import directly from theme
-        const isUiDev = true
-        if (isUiDev) {
+        if (process.argv.includes('--uiDev')) {
           const templatePath = fileURLToPath(new URL(`./theme/${kebabCase(component)}`, import.meta.url))
           return [
             `import template from ${JSON.stringify(templatePath)}`,