group the code and tests inside the same folder for each function

[Daydreamer-riri]

Currently, the implementation and tests
of the same function are stored in different folders, which makes the context of each function more scattered.
If they are moved into the same folder, it can allow each function to be written without jumping between multiple folders.

New structures could be:

└──  useToggle
     ├── index.spec.ts
     └── index.ts

[childrentime]

OK. I am pleasure with it. just do it with some scripts.

[childrentime]

If you want to deal with it, just assign it to yourself, otherwise I will handle it😘

[Daydreamer-riri]

Leave it to me