feat: Add `chat/threads` profile with discord map

[martinalbert]

Description

Adds profile chat/threads with use-case GetThreads and discord map for this use-case.

Motivation and Context

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have read the CONTRIBUTING document.
• [x] I haven't repeated the code. (DRY)
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[jnv]

@martinalbert I don't see my comment about pagination being addressed. Do you want to keep it out for now?

[martinalbert]

@jnv if you mean this comment, I already removed description about this usecase being paginated in here.

[jnv]

if you mean this comment, I already removed description about this usecase being paginated in here.

OK, my less preferred solution but let's roll with it for now.