Plugins are only loaded in the development environment

I specified a `pluginDir` and the plugins are being loaded correctly. I would also like to use the dev tools in production, so I set `includeInProd` to `true` for `client`, `server`, and `devTools`. However, my plugins do not appear in the live environment.

If I interpret [this line](https://github.com/forge-42/react-router-devtools/blob/main/src/vite/plugin.tsx#L192) correctly, plugins are only loaded when `NODE_ENV` is set to "development".

Is there a reason for this, and are there any plans to change it?

Thanks a lot for these wonderful React Router dev tools ❤️

從 src/vite/plugin.tsx 中連結到的第 192 行附近開始，追蹤 pluginDir、includeInProd 和 NODE_ENV 如何影響外掛程式載入。檢查現有測試或正式環境建置路徑中對 devTools 以及用戶端/伺服器設定的處理。完成的標準是：使用 includeInProd=true 設定的外掛程式存在於執行環境中，同時保留開發環境下的行為。

由索引模型根據 Issue 內容生成。