Changing no data label and test files

[simmonsj330]

Description

Fixes #1916 where now there is only one message stating that there is no data available. Additionally adds testing.

• [ x] Summary of the change / bug fix.
• [ x] Link # issue, if applicable.
• [x ] Screenshot of the feature or the bug before/after fix, if applicable.
• [ x] Relevant motivation and context.
• [ x] List any dependencies that are required for this change.

How has this been tested?

pytest tests/openbb_terminal/stocks/fundamental_analysis/test_business_insider_view.py --rewrite-expected

Checklist:

• Update our Hugo documentation following these guidelines.
• [x ] Update our tests following these guidelines.
• [ x] Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Others

• [ x] I have performed a self-review of my own code.
• [ x] I have commented my code, particularly in hard-to-understand areas.
• [ x] My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.
• [ x] New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....