chore: update release info to 1.6.0

dist/appstream/net.blumia.pineapple-pictures.metainfo.xml

@@ -102,6 +102,28 @@
     </screenshot>
   </screenshots>
   <releases>
+    <release type="stable" version="1.6.0" date="2026-08-22T00:00:00Z">
+      <description>
+        <p>This release adds the following features:</p>
+        <ul>
+          <li>Allow dragging window from titlebar to move window when maximized</li>
+          <li>Add an option to show/hide bird-eye view</li>
+        </ul>
+        <p>This release fixes the following bugs:</p>
+        <ul>
+          <li>Maximize the window when the image size matches the screen size</li>
+          <li>Fix window might stuck when drag move on some ill-formed window manager</li>
+          <li>Make titlebar respect RTL layout</li>
+        </ul>
+        <p>This release includes the following changes:</p>
+        <ul>
+          <li>Update translations</li>
+          <li>Update Qt version to 6.11.2 for Windows and macOS pre-built binaries</li>
+        </ul>
+        <p>With contributions from:</p>
+        <p>Tech-Tac, Heimen Stoffels (vistaus), VenusGirl, Oğuz Ersen</p>
+      </description>
+    </release>
     <release type="stable" version="1.5.0" date="2026-07-04T00:00:00Z">
       <description>
         <p>This release adds the following features:</p>

dist/net.blumia.pineapple-pictures.desktop

@@ -5,6 +5,7 @@ Comment[zh_CN]=菠萝看图是一个轻量级的图像查看器
 Exec=ppic %F
 GenericName=Image Viewer
 GenericName[zh_CN]=图像查看器
+GenericName[ja]=画像ビューアー
 Icon=net.blumia.pineapple-pictures
 Keywords=Picture;Image;Viewer;Jpg;Jpeg;Png;
 MimeType=image/bmp;image/bmp24;image/jpg;image/jpe;image/jpeg;image/jpeg24;image/jng;image/pcd;image/pcx;image/png;image/tif;image/tiff;image/tiff24;image/dds;image/gif;image/sgi;image/j2k;image/jp2;image/pct;image/wdp;image/arw;image/icb;image/dng;image/vda;image/vst;image/svg;image/ptif;image/mef;image/xbm;image/svg+xml;