YNAB 4 import: budget name is not url-encoded

[morremeyer]

Describe the bug
The Budget name for imports from YNAB 4 is not urlencoded when calling the API.

To Reproduce
Steps to reproduce the behavior:

1. Start your development environment
2. Try to import a budget with the name "Test & 2"
3. See that it gets created as "Test "

Expected behavior
Budget name should be "Test & 2"

Additional context

The request sent to the backend looks like this:

http://localhost:3000/api/v1/import/ynab4?budgetName=tes & 3=

This will lead to the & and everything after it to be dropped when the request path is processed by the backend.