Restore UI functionalities and clean up dependencies

backendia/node_modules/exponential-backoff/dist/delay/delay.base.d.ts

@@ -0,0 +1,12 @@
+import { IDelay } from "./delay.interface";
+import { IBackOffOptions } from "../options";
+export declare abstract class Delay implements IDelay {
+    private options;
+    protected attempt: number;
+    constructor(options: IBackOffOptions);
+    apply(): Promise<unknown>;
+    setAttemptNumber(attempt: number): void;
+    private readonly jitteredDelay;
+    private readonly delay;
+    protected readonly numOfDelayedAttempts: number;
+}