Fix JSDoc grammar

Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com>

server/model/group.js

@@ -4,7 +4,7 @@ const { R } = require("redbean-node");
 class Group extends BeanModel {
 
     /**
-     * Return a object that ready to parse to JSON for public
+     * Return an object that ready to parse to JSON for public
      * Only show necessary data to public
      * @param {boolean} [showTags=false] Should the JSON include monitor tags
      * @returns {Object}

server/model/heartbeat.js

@@ -14,7 +14,7 @@ const { BeanModel } = require("redbean-node/dist/bean-model");
 class Heartbeat extends BeanModel {
 
     /**
-     * Return a object that ready to parse to JSON for public
+     * Return an object that ready to parse to JSON for public
      * Only show necessary data to public
      * @returns {Object}
      */
@@ -28,7 +28,7 @@ class Heartbeat extends BeanModel {
     }
 
     /**
-     * Return a object that ready to parse to JSON
+     * Return an object that ready to parse to JSON
      * @returns {Object}
      */
     toJSON() {

server/model/incident.js

@@ -3,7 +3,7 @@ const { BeanModel } = require("redbean-node/dist/bean-model");
 class Incident extends BeanModel {
 
     /**
-     * Return a object that ready to parse to JSON for public
+     * Return an object that ready to parse to JSON for public
      * Only show necessary data to public
      * @returns {Object}
      */

server/model/monitor.js

@@ -41,7 +41,7 @@ class Monitor extends BeanModel {
     }
 
     /**
-     * Return a object that ready to parse to JSON
+     * Return an object that ready to parse to JSON
      * @returns {Object}
      */
     async toJSON(includeSensitiveData = true) {

server/model/proxy.js

@@ -2,7 +2,7 @@ const { BeanModel } = require("redbean-node/dist/bean-model");
 
 class Proxy extends BeanModel {
     /**
-     * Return a object that ready to parse to JSON
+     * Return an object that ready to parse to JSON
      * @returns {Object}
      */
     toJSON() {

server/model/status_page.js

@@ -98,7 +98,7 @@ class StatusPage extends BeanModel {
     }
 
     /**
-     * Return a object that ready to parse to JSON
+     * Return an object that ready to parse to JSON
      * @returns {Object}
      */
     async toJSON() {
@@ -119,7 +119,7 @@ class StatusPage extends BeanModel {
     }
 
     /**
-     * Return a object that ready to parse to JSON for public
+     * Return an object that ready to parse to JSON for public
      * Only show necessary data to public
      * @returns {Object}
      */

server/model/tag.js

@@ -3,7 +3,7 @@ const { BeanModel } = require("redbean-node/dist/bean-model");
 class Tag extends BeanModel {
 
     /**
-     * Return a object that ready to parse to JSON
+     * Return an object that ready to parse to JSON
      * @returns {Object}
      */
     toJSON() {