Feature: Bar Chart

## Description

For a better user UX, we could benefit from adding bar charts to our application. It would add to the simplistic and pleasant overview of user statistics.


## Data to be visualized

Data is the change of BMI over time.


## Examples

<img width="622" height="367" alt="Image" src="https://github.com/user-attachments/assets/97205259-13ac-4757-8164-b145088e0b81" />