SaraTag: single menu category; build AppImage via temp file

Packaging/BuildAppImage.sh

@@ -34,5 +34,9 @@ StartupWMClass=srhtnin.SaraSuite
 DESKTOP
 
 mkdir -p dist
-ARCH=x86_64 appimagetool --no-appstream "$AppDir" dist/SaraSuite-x86_64.AppImage
+# Built under a temporary name, then renamed into place: the AppImage can't be
+# overwritten while SaraSuite is running from it ("Text file busy"), but a
+# rename is fine, and the running copy keeps working until it's closed.
+ARCH=x86_64 appimagetool --no-appstream "$AppDir" dist/SaraSuite-x86_64.AppImage.new
+mv -f dist/SaraSuite-x86_64.AppImage.new dist/SaraSuite-x86_64.AppImage
 echo "Built dist/SaraSuite-x86_64.AppImage"

Programs/SaraTag/Templates/SaraTag.desktop

@@ -5,6 +5,6 @@ Comment=Tag files with Books defined by Lexicons
 Exec={AppDir}/Packaging/Launch.sh
 Icon={AppDir}/assets/Icon.png
 Terminal=false
-Categories=Utility;Graphics;
+Categories=Utility;
 StartupNotify=true
 StartupWMClass=srhtnin.{Name}