Fix some jsdoc errors

src/handle.js

@@ -401,7 +401,7 @@ class Handle extends EventEmitter {
    * Helper to close a transaction with error.
    *
    * @property {string} id - The transaction id
-   * @property {string} error - The error message
+   * @property {object} error - The error object
    * @returns {void}
    */
   closeTransactionWithError(id, error) {

src/plugins/echotest-plugin.js

@@ -169,7 +169,7 @@ class EchoTestHandle extends Handle {
  *
  * @type {object}
  * @property {string} id - The plugin identifier used when attaching to Janus
- * @property {module:audiobridge-plugin~AudioBridgeHandle} Handle - The custom class implementing the plugin
+ * @property {module:echotest-plugin~EchoTestHandle} Handle - The custom class implementing the plugin
  * @property {object} EVENT - The events emitted by the plugin
  * @property {string} EVENT.ECHOTEST_RESULT {@link module:echotest-plugin~ECHOTEST_RESULT}
  * @property {string} EVENT.ECHOTEST_SLOWLINK {@link module:echotest-plugin~ECHOTEST_SLOWLINK}

src/tmanager.js

@@ -156,7 +156,7 @@ class TransactionManager {
    *
    * @param {string} id - The transaction identifier
    * @param {object} owner - A reference to the transaction owner
-   * @param {string} error - The error string
+   * @param {object} error - The error object
    * @returns {PendingTransaction|void} The closed transaction, or nothing if the id does not exist or the owner does not match
    */
   closeTransactionWithError(id, owner, error) {
@@ -175,7 +175,7 @@ class TransactionManager {
    * The closed transactions will be removed from the internal table.
    *
    * @param {object} [owner] - A reference to the transaction owner
-   * @param {string} error - The error string
+   * @param {object} error - The error object
    */
   closeAllTransactionsWithError(owner, error) {
     for (const [_, pendingTx] of this.transactions) {