message: gui: explicitly disable "Dark Mode" appearance on macOS
diff: <plist version="0.9">
  <dict>
  <key>LSMinimumSystemVersion</key>
  - <string>10.8.0</string>
  + <string>10.10.0</string>
  <key>LSArchitecturePriority</key>
  <array>
  <key>LSAppNapIsDisabled</key>
  <string>True</string>
  + <key>NSRequiresAquaSystemAppearance</key>
  + <string>True</string>
  +
  <key>LSApplicationCategoryType</key>
  <string>public.app-category.finance</string>
  </dict>
  