Metainfo: add 8.3.0 release notes (#485)

Author: danirabbit

data/desktop.metainfo.xml.in

@@ -43,6 +43,19 @@
   <update_contact>contact_at_elementary.io</update_contact>
 
   <releases>
+    <release version="8.3.0" date="2026-03-17" urgency="medium">
+      <description>
+        <p>Other updates:</p>
+        <ul>
+          <li>Updated translations</li>
+        </ul>
+      </description>
+      <issues>
+        <issue url="https://github.com/elementary/settings-desktop/issues/304">Ability to modify monospace font</issue>
+        <issue url="https://github.com/elementary/settings-desktop/issues/435">Latte is not present</issue>
+      </issues>
+    </release>
+
     <release version="8.2.1" date="2025-11-17" urgency="medium">
       <description>
         <p>Other updates:</p>