Use Axios's toJSON method to make shorter errors

[BryceStevenWilley]

On an example erroring docassemble server (for example, this server returning a 502 to a delete project), the entire axios error will print, which is that case in 1.8k lines, most of it being garbage.

Axios has a toJSON() method on errors that should reduce length of the errors being shown, as it will not print the most annoying parts of the long errors, like the internal axios socket objects

The errors look like this now, which IMO is an improvement:

$ alkiln-takedown
ALKiln takedown: Trying to remove the docassemble Project from the testing account.
ALKiln : Trying to delete Project fake_project

ALKiln  ERROR: Ran into an error when deleting Project "fake_project"

ALKiln takedown ERROR: could not delete_project
{
    "message": "Request failed with status code 400",
    "name": "Error",
    "stack": "Error: Request failed with status code 400\n    at createError (/home/brycew/Developer/LITLab/code/ALKiln/node_modules/axios/lib/core/createError.js:16:15)\n    at settle (/home/brycew/Developer/LITLab/code/ALKiln/node_modules/axios/lib/core/settle.js:17:12)\n    at IncomingMessage.handleStreamEnd (/home/brycew/Developer/LITLab/code/ALKiln/node_modules/axios/lib/adapters/http.js:293:11)\n    at IncomingMessage.emit (node:events:377:35)\n    at endReadableNT (node:internal/streams/readable:1312:12)\n    at processTicksAndRejections (node:internal/process/task_queues:83:21)",
    "config": {
        "transitional": {
            "silentJSONParsing": true,
            "forcedJSONParsing": true,
            "clarifyTimeoutError": false
        },
        "transformRequest": [
            null
        ],
        "transformResponse": [
            null
        ],
        "timeout": 120000,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "maxBodyLength": -1,
        "headers": {
            "Accept": "application/json, text/plain, */*",
            "User-Agent": "axios/0.24.0"
        },
        "method": "delete",
        "url": "http://192.168.4.47/api/playground/project",
        "params": {
            "key": "********************************",
            "project": "fake_project"
        }
    },
    "status": 400
}

Fix #605.

[plocket]

Good goal! We decided what we'd like to do is properly isolate the .toJSON() calls in the docassemble_api_REST.js file. That way, everything else can just throw the error without worrying about it. Only the functions in the REST file will use .toJSON().

[plocket]

I made some notes, but I don't think they're blockers (iirc). I think this is a great change in general.

[BryceStevenWilley]

Needs a CHANGELOG update 😬

[BryceStevenWilley]

Did a changelog update, should be ready to go!