perf: reduce latency when create/delete resumes

[xiaohanyu]

Description

Right now there's 2-4 seconds latency when users create or delete resumes, we can optimize this and give users instant feedbacks.

Demo:

create-delete-resume-latency.mp4

[Optional] Possible Solutions

Right now when user create or delete resumes, we send two requests:

1. POST /resumes or DELETE /resumes/:slug
2. GET /resumes for a refetch of all resumes and refresh the whole resume list

We can instead, first update the zustand resumes store when create/delete resumes (this would be instant), and then after POST /resumes or DELETE /resumes/:slug respond, we check the status code and act accordingly.

Acceptance Criteria

• the UI latency for create/delete resumes should be removed

Todo list

NA