chore: Update AppImage metadata for v1.1.1 release

- Update aquiis.desktop with v1.1.1 version
- Add v1.1.1 release entry to appdata.xml with changelog

Author: CIS Guru

4-Aquiis.SimpleStart/Assets/aquiis.desktop

@@ -1,13 +1,13 @@
 [Desktop Entry]
 Name=Aquiis Property Management
 Comment=Multi-tenant property management system for small landlords
-Exec=Aquiis-1.1.0-x86_64.AppImage
+Exec=Aquiis-1.1.1-x86_64.AppImage
 Icon=aquiis
 Type=Application
 Categories=Office;Finance;
 Terminal=false
 StartupWMClass=Aquiis Property Management
-X-AppImage-Version=1.1.0
+X-AppImage-Version=1.1.1
 X-AppImage-Name=Aquiis Property Management
 X-AppImage-Arch=x86_64
 Keywords=property;management;landlord;rental;lease;tenant;invoice;

4-Aquiis.SimpleStart/Assets/com.aquiis.propertymanagement.appdata.xml

@@ -63,6 +63,20 @@
   </provides>
 
   <releases>
+    <release version="1.1.1" date="2026-02-28">
+      <description>
+        <p>Bug Fix and Enhancement Release</p>
+        <ul>
+          <li>Fixed brand theme flicker on repeated NavLink clicks</li>
+          <li>Fixed login double-submit causing blank page redirect</li>
+          <li>Windows database encryption implementation using DPAPI</li>
+          <li>Windows installer deployment (replaced portable executable)</li>
+          <li>Hidden Electron menu bar for native desktop experience</li>
+          <li>Optimized MutationObserver for improved performance</li>
+          <li>Enhanced documentation with cross-references</li>
+        </ul>
+      </description>
+    </release>
     <release version="1.1.0" date="2026-02-19">
       <description>
         <p>Security and Schema Enhancement Release</p>