[MM-36603] - Text is cut-off on the bottom of the 14-day trial 3 day to end of trial email notification (#18421)

* feedback impl

* add test

templates/cloud_trial_end_warning.html

@@ -387,7 +387,7 @@
                                 <td align="left" style="font-size:0px;padding:0px 0px ;word-break:break-word;">
                                   <div style="font-family:Arial;font-size:14px;line-height:20px;text-align:left;color:#3D3C40;">{{.Props.QuestionInfo}}
                                     <a href='mailto:{{.Props.SupportEmail}}'>
-                                      {{.Props.SupportEmail}}
+                                      feedback-cloud@mattermost.com
                                     </a>
                                   </div>
                                 </td>

templates/cloud_trial_end_warning.mjml

@@ -40,7 +40,7 @@
           <mj-text font-size="14px" line-height="20px" color="#3D3C40" padding="0px 0px " align="left" font-family="Arial">
             {{.Props.QuestionInfo}}
             <a href='mailto:{{.Props.SupportEmail}}'>
-              {{.Props.SupportEmail}}
+              feedback-cloud@mattermost.com
             </a>
           </mj-text>
         </mj-column>