Feat/3784/improve quantile diagramm

[BenediktMehl]

Improving the quantile color diagram

Closes: #3784

Description

• Made the diagram bigger
• Added a cross so one can see the exact values when hovering the diagram

Definition of Done

A PR is only ready for merge once all the following acceptance criteria are fulfilled:

• Changes have been manually tested
• All TODOs related to this PR have been closed
• There are automated tests for newly written code and bug fixes
• All bugs discovered while working on this PR have been submitted as issues (if not already an open issue)
• Documentation (GH-pages, analysis/visualization READMEs, parser READMEs, --help, etc.) has been updated (almost always necessary except for bug fixes)
• CHANGELOG.md has been updated

Screenshots or gifs

[IhsenBouallegue]

The code looks good and it works for me too. The slider inputs don't have to be that big as it they are just for 2 digits. But this is not a blocker just something caused by the menu becoming bigger. I realized it was like that the whole time with the slider.

[sonarqubecloud]

Quality Gate passed for 'CodeCharta Visualization'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed for 'CodeCharta Analysis'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud