chore: Update dmg background

ui/desktop/electron-app/config/forge.config.js

@@ -44,7 +44,7 @@ module.exports = {
       name: "@electron-forge/maker-dmg",
       config: {
         name: "boundary-desktop",
-        title: "Boundary Desktop",
+        title: "BoundaryDesktop",
         background: "./config/macos/background.png"
       }
     }