fix(form-dialog): correct typo in onOpened event and improve portal setup

[cn-xufei]

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What have you changed?

1. Changes in packages/components/src/form-dialog/index.ts:

• Moved render logic from render() to setup() for better Vue 3 composition API alignment
• Simplified event handlers by removing unnecessary arrow functions
• Fixed typo: renamed 'onOpend' to 'onOpened'
• Improved code organization and readability
• Added proper component instance cleanup in onClosed hook using vueRender(null, env.root)

2. Changes in package.json:

• Added resolutions field to fix tslib export error:

  "resolutions": {
    "**/rollup-plugin-typescript2": "^0.31.0"
  }

• This forces a specific version of rollup-plugin-typescript2 that has compatible tslib exports configuration
• Resolves the "Package subpath './package.json' is not defined by exports" error

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