feat(atlassian): add user's name as account string representation

[Ahuahuachi]

Submitting Pull Requests

General

• Make sure you use semantic commit messages.
  Examples: "fix(google): Fixed foobar bug", "feat(accounts): Added foobar feature".
• All Python code must formatted using Black, and clean from pep8 and isort issues.
• N/A JavaScript code should adhere to StandardJS.
• N/A If your changes are significant, please update ChangeLog.rst.
• N/A If your change is substantial, feel free to add yourself to AUTHORS.

Provider Specifics

In case you add a new provider:

• N/A Make sure unit tests are available.
• N/A Add an entry of your provider in test_settings.py::INSTALLED_APPS and docs/installation.rst::INSTALLED_APPS.
• N/A Add documentation to docs/providers/<provider name>.rst and docs/providers/index.rst Provider Specifics toctree.
• N/A Add an entry to the list of supported providers over at docs/overview.rst.

[coveralls]

coverage: 95.591%. remained the same
when pulling 7642261 on Ahuahuachi:main
into 5e4a7e3 on pennersr:main.