refactor: remove electron-related code

src/index.d.ts

@@ -0,0 +1,16 @@
+interface Array<T> {
+  findLast(predicate: (value: T, index: number, obj: T[]) => boolean, thisArg?: any): T | undefined
+}
+
+interface PromiseConstructor {
+  any<T>(promises: Array<T | PromiseLike<T>>): Promise<T>
+}
+
+interface AggregateError extends Error {
+  errors: any[]
+}
+
+declare const AggregateError: {
+  prototype: AggregateError
+  new (errors: any[], message?: string): AggregateError
+}