docs(clipboard): Added allowlist section to the Clipboard module
* Read and write to the system clipboard.
*
* This package is also accessible with `window.__TAURI__.clipboard` when [`build.withGlobalTauri`](https://tauri.app/v1/api/config/#buildconfig.withglobaltauri) in `tauri.conf.json` is set to `true`.
+ *
+ * The APIs must be added to [`tauri.allowlist.clipboard`](https://tauri.app/v1/api/config/#allowlistconfig.clipboard) in `tauri.conf.json`:
+ * ```json
+ * {
+ * "tauri": {
+ * "allowlist": {
+ * "clipboard": {
+ * "all": true, // enable all Clipboard APIs
+ * "writeText": true,
+ * "readText": true
+ * }
+ * }
+ * }
+ * }
+ * ```
+ * It is recommended to allowlist only the APIs you use for optimal bundle size and security.
+ *
* @module
*/
