Make zero findings visually distinguishable in compliance/incident bar charts

🚀 Feature Request

Summary

Improve the data quality bar chart visualization by clearly indicating zero findings, which currently are only shown numerically and may be overlooked.

Problem to Solve / User Story

As a user evaluating data quality, I want zero findings to be visually represented in the compliance/incident bar charts so that I can easily distinguish between actually passed checks and checks that were skipped due to missing attributes or elements.

For example, if I want to check whether a conceptId has a valid type attribute, and the conceptId does not have a type attribute at all, the green bar still appears as if everything passed, while the number in brackets behind "zero findings" is the only indicator that there is still a DQ problem. This can mislead users into thinking the record is fully compliant.

Proposed Solution

Enhance the bar chart to visually represent zero findings, for example:

Add a third bar color (e.g., gray or striped) to indicate “0 findings”

Show a tooltip or small icon when hovering over bars with zero findings

Benefits

Improves clarity and interpretability of results

Helps avoid false assumptions about data correctness

Possible Drawbacks

Slightly increases visual complexity of the charts

Additional Context

Relevant Logs or Screenshots (if applicable)

Requirements or Dependencies

Adjust frontend rendering of chart components