This PR is handles the changes required to support envelopes. The new
envelope editor/signing page will be hidden during release.
The core changes here is to migrate the documents and templates model to
a centralized envelopes model.
Even though Documents and Templates are removed, from the user
perspective they will still exist as we remap envelopes to documents and
templates.
The searchDocuments function is used for the shortcuts commands, afaik.
The function returns the documents that match the user query (if any),
alongside all their recipients.
The reason for that is so it can build the path for the document. E.g.
if you're the document owner, the document path will be
`..../documents/{id}`. But if you're a signer for example, the document
path (link) will be `..../sign/{token}`.
So instead of doing that on the frontend, I moved it to the backend.
At least that's what I understood. If I'm wrong, please correct me.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Enhanced the `CommandMenu` component to simplify search result
generation and improve document link management based on user roles.
- **Refactor**
- Updated document search logic to include recipient token masking and
refined document mapping.
- **Style**
- Minor formatting improvement in document routing code.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
