feat: add d'n'd listener to open files on drop

chore: apply eslint-config

src/preload/index.d.ts

@@ -2,7 +2,7 @@ import { ElectronAPI } from '@electron-toolkit/preload'
 
 declare global {
   interface Window {
-    electron: ElectronAPI
     api: unknown
+    electron: ElectronAPI
   }
 }