Use screen crop for owned popup windows

desktopIndependentWindow composites owned popups together with their
parent window and scales the group to the popup's size. Detect the case
at pick time — another window from the same app overlapping the picked
one — and capture the screen crop with a rounded mask instead, which
contains only the popup.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4-flash-0731

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.8.1</string>
+    <string>1.8.2</string>
     <key>CFBundleVersion</key>
-    <string>81</string>
+    <string>82</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>