properly display django validation errors

[c0rydoras]

currently a validation error from the backend is not handled at all:

instead of that show the error somewhat like this:

[derrabauke]

Had a similar issue today. Just wanted to add some new repo and could not finish without looking up the validation rules in the source code.

Would be nice to have a proper hint what form is expected.

[c0rydoras]

AFAICT this is frontend validation, regex

the .git is the issue iirc

  repo: [
    validatePresence({ presence: true, ignoreBlank: true }),
    validateLength({ max: 200 }),
    validateFormat({
      regex: /^([-_\w]+\.[-._\w]+)\/([-_\w]+)\/([-_\w]+)$/,
    }),
  ],