Unicode not supported across devices

Author: jberkel

app/src/main/assets/about.html

@@ -14,7 +14,7 @@
       IMAP server. Can also restore SMS / call logs after they have been backed up.
     </p>
 
-    <h3>New in this (long overdue 🐌) release:</h3>
+    <h3>New in this (long overdue!) release:</h3>
     <ul class="news">
       <li>More reliable auto backups (thanks <a href="https://github.com/MadsAndreasen">Mads Andreasen</a> for the initial JobManager code)</li>
       <li>Material UI with light/dark themes</li>