Separate rejected stories from approved and pending

**IMPORTANT: please make sure you ask yourself all intro questions and fill all sections of the template.**

**Before we start...:**

- [x] I checked the documentation and didn't find this feature
- [x] I checked to make sure that this feature has not already been requested

**Branch/Commit:**

Production

**Describe the feature:**

This feature is similar to #316, but if I understood that issue right, it requests the ability to order by status, and my issue is to have rejected issues thrown to their own list to the bottom

> **As an engineer going through points stories for a roadmap**
> **I set a story status to "rejected"**
> **And I see it added to a rejected list towards the bottom, after approved and pending stories**

**Problem:**

The current problem is that, especially for projects with a lot of stories, those that were rejected pollute the list we need to go through and examine on wether the story applies or not. Having rejected stories gathered in their own list after the ones approved or awaiting examination would help with the annoying confusion of opening stories you have already looked at.

> **As a an Engineer>**
> **I want to have rejected stories apart from the other stories**
> **So that I can more easily track which stories I have researched or not**

**Mockups:**


**I will abide by the [code of conduct](https://github.com/fastruby/points/blob/main/CODE_OF_CONDUCT.md)**