Improvements on notify expired service tokens

backend/src/services/smtp/templates/serviceTokenExpired.handlebars

@@ -3,14 +3,14 @@
   <head>
     <meta charset="utf-8" />
     <meta http-equiv="x-ua-compatible" content="ie=edge" />
-    <title>Service Token Expired</title>
+    <title>Service Token Expiring Soon</title>
   </head>
 
   <body>
-    <h2>Your Service Token has expired</h2>
-    <p>Your service token <strong>"{{tokenName}}"</strong> has expired.</p>
+    <h2>Your Service Token is about to expire</h2>
+    <p>Your service token <strong>"{{tokenName}}"</strong> will expire within 24 hours.</p>
     
-    <p>This token was being used to access the project "{{projectName}}". To ensure continued service, please create a new token as soon as possible.</p>
+    <p>This token is currently being on project "{{projectName}}". If this token is still needed for your workflow, please create a new one before it expires.</p>
     
     <a href="{{url}}">Create New Token</a>