Using light icon for tray

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/main/tray.ts

@@ -20,7 +20,7 @@ export function getTrayIcon(): string {
   return path.resolve(
     __static,
     isDevelopment ? "../build/tray" : "icons", // copied within electron-builder extras
-    "trayTemplate.png"
+    "trayIconTemplate.png"
   );
 }