fix: Update account data seeder to avoid invalid information (#7673)

- The message sender was incorrect. Incoming messages were created under the contact's name, and outgoing messages were created under the user's name instead of the reverse.
- The seed user's email address was incorrect in the message data.
- The Sendmail configuration overrode the Letter Opener config which made it difficult to test the email.
- This PR also fixes an ESLint lint issue on develop.

app/javascript/dashboard/routes/dashboard/settings/campaigns/CampaignCard.vue

@@ -54,7 +54,10 @@
       >
         {{ campaign.trigger_rules.url }}
       </div>
-      <div v-if="campaign.scheduled_at" class="text-xs text-slate-700 dark:text-slate-500 mb-1">
+      <div
+        v-if="campaign.scheduled_at"
+        class="text-xs text-slate-700 dark:text-slate-500 mb-1"
+      >
         {{ messageStamp(new Date(campaign.scheduled_at), 'LLL d, h:mm a') }}
       </div>
     </div>