Name of Defective Feature

• Days Of Buffering

System Settings (Required)

• ToolKit Version: 2.12.0
• Operating System (Mac/Windows/Etc): Windows
• Browser (Chrome/Firefox/Safari): Chrome
• Browser Version: 75.0.3770.100
• Other Extensions: /

Export of Toolkit Settings (Bottom Left of Settings Page)

[{"key":"AccountsDisplayDen

Is your feature request related to a problem? Please describe.
The API error messages are rather generic and I think we can improve them - in particular the error 401 API access token missing, invalid, revoked, or expired (link to code line) because users are very likely to encounter this error on their first try of th

Similar to [Client::get_category_by_id] we want to be able to get a Budget by id.

The URL to make a GET request to: /budgets/{budget_id}

This implementation will basically be a copy and paste of the get_category_by_id implementation.

See [the api docs] for more information.

Also implement the relevant CLI command using the existing commands as reference.

[`Client::get_cate