add missing jsdoc imports and defs (#3)

lib/internal/modules/esm/loader.js

@@ -54,6 +54,7 @@ const { tracingChannel } = require('diagnostics_channel');
 const onImport = tracingChannel('module.import');
 
 /**
+ * @typedef {import('./hooks.js').HooksProxy} HooksProxy
  * @typedef {import('./module_job.js').ModuleJobBase} ModuleJobBase
  * @typedef {import('url').URL} URL
  */
@@ -150,6 +151,7 @@ class ModuleLoader {
    *  to this property and failure to do so will cause undefined
    * behavior when invoking `import.meta.resolve`.
    * @see {ModuleLoader.setCustomizations}
+   * @type {CustomizedModuleLoader}
    */
   #customizations;
 
@@ -203,7 +205,7 @@ class ModuleLoader {
    *
    * Calling this function alters how modules are loaded and should be
    * invoked with care.
-   * @param {object} customizations
+   * @param {CustomizedModuleLoader} customizations
    */
   setCustomizations(customizations) {
     this.#customizations = customizations;
@@ -679,7 +681,7 @@ class ModuleLoader {
   /**
    * Similar to {@link resolve}, but the results are always synchronously returned. If there are any
    * asynchronous resolve hooks from module.register(), it will block until the results are returned
-   * from the loader thread for this to be synchornous.
+   * from the loader thread for this to be synchronous.
    * This is here to support `import.meta.resolve()`, `require()` in imported CJS, and
    * `module.registerHooks()` hooks.
    *