Tree views in current branch/workflows/settings is sorted by repo name length

**Describe the bug**
This is an _unexpected_ behavior. The order of the items in the tree views are sorted by _the length of the repository name_. This is an unreasonable sorting strategy! 😅

**To Reproduce**
Steps to reproduce the behavior:
1. Login
2. Look at the workflows

**Expected behavior**
I expect the workflows to be sorted by some _reasonable_ means like a) alphabetically or b) order appearing the workspace. The easiest would be just alphabetically. Finding the correct repository workflow now is hard. I need to think about how _long the name of the repository is_ 🤯

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Extension Version**
`v0.26.2`

首先定位此 VS Code 扩展中 Current Branch、Workflows 和 Settings 的树视图实现，然后跟踪存储库名称的排序方式。按要求将排序方式改为字母顺序，并验证受影响的视图，尤其是 Workflows，不再按存储库名称的长度排序。

由索引模型根据 Issue 内容生成。