refactor!: welp, a lot of stuff

- Use the OS temp folder to cache the player, closes #57.
- Added support for editing channel name, closes #40.
- Added support for editing channel description.
- Added support for retrieving basic channel analytics, closes #54.
- Moved `Innertube#getAccountInfo()` to `Innertube#account`, and renamed it to `getInfo()`.
- `getInfo()` is now able to return email, channel id, etc.
- Improved jsdoc.

lib/core/InteractionManager.js

@@ -0,0 +1,134 @@
+'use strict';
+
+const Utils = require('../utils/Utils');
+
+/** @namespace */
+class InteractionManager {
+  #actions;
+  
+  /**
+   * @param {Actions} actions
+   * @constructor
+   */
+  constructor(actions) {
+    this.#actions = actions;
+  }
+  
+ /**
+  * Likes a given video.
+  * @param {string} video_id
+  * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>}
+  */
+  async like(video_id) {
+    Utils.throwIfMissing({ video_id });
+    const action = await this.#actions.engage('like/like', { video_id });
+    return action;
+  }
+  
+ /**
+  * Dislikes a given video.
+  * @param {string} video_id
+  * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>}
+  */
+  async dislike(video_id) {
+    Utils.throwIfMissing({ video_id });
+    const action = await this.#actions.engage('like/dislike', { video_id });
+    return action;
+  }
+  
+  /**
+   * Removes a like/dislike.
+   * @param {string} video_id 
+   * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>} 
+   */
+  async removeLike(video_id) {
+    Utils.throwIfMissing({ video_id });
+    const action = await this.actions.engage('like/removelike', { video_id });
+    return action;
+  }
+  
+  /**
+   * Subscribes to a given channel.
+   * @param {string} channel_id 
+   * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>}
+   */
+  async subscribe(channel_id) {
+    Utils.throwIfMissing({ channel_id });
+    const action = await this.#actions.engage('subscription/subscribe', { channel_id });
+    return action;
+  }
+  
+  /**
+   * Unsubscribes from a given channel.
+   * @param {string} channel_id 
+   * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>}
+   */
+  async unsubscribe(channel_id) {
+    Utils.throwIfMissing({ channel_id });
+    const action = await this.#actions.engage('subscription/unsubscribe', { channel_id });
+    return action;
+  }
+  
+  /**
+   * Posts a comment on a given video.
+   * 
+   * @param {string} video_id 
+   * @param {string} text 
+   * 
+   * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>}
+   */
+  async comment(video_id, text) {
+    Utils.throwIfMissing({ video_id, text });
+    const action = await this.#actions.engage('comment/create_comment', { video_id, text });
+    return action;
+  }
+  
+  /**
+   * Translates a given text using YouTube's comment translate feature.
+   * 
+   * @param {string} text
+   * @param {string} target_language - an ISO language code
+   * @param {object} [args] - optional arguments
+   * @param {string} [args.video_id]
+   * @param {string} [args.comment_id]
+   * 
+   * @returns {Promise.<{ success: boolean; status_code: number; translated_content: string; data: object; }>}
+   */
+  async translate(text, target_language, args = {}) {
+    Utils.throwIfMissing({ text, target_language });
+   
+    const response = await await this.#actions.engage('comment/perform_comment_action', {
+      video_id: args.video_id,
+      comment_id: args.comment_id,
+      target_language: target_language,
+      comment_action: 'translate',
+      text
+    });
+        
+    const translated_content = Utils.findNode(response.data, 'frameworkUpdates', 'content', 7, false);
+        
+    return {
+      success: response.success,
+      status_code: response.status_code,
+      translated_content: translated_content.content,
+      data: response.data
+    }
+  }
+  
+  /**
+   * Changes notification preferences for a given channel.
+   * Only works with channels you are subscribed to.
+   * 
+   * @param {string} channel_id 
+   * @param {string} type - `PERSONALIZED` | `ALL` | `NONE`
+   *
+   * @returns {Promise.<{ success: boolean; status_code: number; data: object; }>} 
+   */
+  async setNotificationPreferences(channel_id, type) {
+    Utils.throwIfMissing({ channel_id, type });
+    const action = await this.#actions.notifications('modify_channel_preference', { channel_id, pref: type || 'NONE' });
+    return action;
+  }
+}
+
+module.exports = InteractionManager;