Apply suggestions from code review

Co-authored-by: Darin Kotter <darin.kotter@gmail.com>

Author: iamdharmesh

includes/class-mailchimp-admin.php

@@ -37,8 +37,9 @@ public function init() {
 
 	/**
 	 * Start the OAuth process.
+	 *
 	 * This function is called via AJAX.
-	 * It start the OAuth process by the calling the oAuth middleware server and responding the response to the front-end.
+	 * It starts the OAuth process by the calling the OAuth middleware server and sending the response to the front-end.
 	 */
 	public function start_oauth_process() {
 		// Validate the nonce and permissions.
@@ -86,8 +87,9 @@ public function start_oauth_process() {
 
 	/**
 	 * Finish the OAuth process.
+	 *
 	 * This function is called via AJAX.
-	 * This function finishes the OAuth process by the sending temporary token back to the oAuth server.
+	 * This function finishes the OAuth process by the sending a temporary token back to the OAuth server.
 	 */
 	public function finish_oauth_process() {
 		// Validate the nonce and permissions.

includes/class-mailchimp-data-encryption.php

@@ -2,7 +2,7 @@
 /**
  * Class responsible for encrypting and decrypting data.
  *
- * @package   Mailchimp
+ * @package Mailchimp
  */
 
 // Exit if accessed directly.
@@ -121,7 +121,7 @@ private function get_default_key() {
 			return LOGGED_IN_KEY;
 		}
 
-		// If this is reached, you're either not on a live site or have a serious security issue.
+		// Ideally this default is never used but we have it just in case.
 		return 'vJgwa_qf0u(k!uir[rB);g;DciNAKuX;+q&`A+z&m6kX3Y|$q.U3:Q>!$)6CA+=O';
 	}
 
@@ -141,7 +141,7 @@ private function get_default_salt() {
 			return LOGGED_IN_SALT;
 		}
 
-		// If this is reached, you're either not on a live site or have a serious security issue.
+		// Ideally this default is never used but we have it just in case.
 		return '|qhC}/w6q+$V`H>wM:AtNpg/{s)g<k{F:WMcvJJD[K6c_Kb1OEy^Yx7f|$Ovm+X|';
 	}
 }

views/setup_page.php

@@ -71,7 +71,7 @@
 			</table>
 			<p class="oauth-error error_msg" style="display:none;"></p>
 			<div id="login-popup-blocked-modal" style="display:none;">
-				<p><?php esc_html_e( 'Please allow your browser to show popups for this page.', 'distributor' ); ?></p>
+				<p><?php esc_html_e( 'Please allow your browser to show popups for this page.', 'mailchimp' ); ?></p>
 				<div class="footer">
 					<a href="https://mailchimp.com/help/enable-pop-ups-in-your-browser/"><!--TODO: This link not working fix this. -->
 						<?php esc_html_e( 'How to Enable Pop-ups in Your Browser', 'mailchimp' ); ?>