Added dynamic width to properly nest elements in objects. Fixed bug with icons not working on dark theme

[VincentvanMedenbach]

[Matthbo]

Why is the extra source not like the first source?
The idea is that no matter how many sources you add, the interface is uniform. But now I see a blue background and "Extra source:" which is kind of obvious already because its in its own container and ready to be mapped from

[VincentvanMedenbach]

Why is the extra source not like the first source? The idea is that no matter how many sources you add, the interface is uniform. But now I see a blue background and "Extra source:" which is kind of obvious already because its in its own container and ready to be mapped from

Honestly, i completely forgot about the styling of the extra sources and the blue you see now is what it was when i first made it. Just discussed the design with sergi and he's made a design to visualize the extra sources better. Will update this pr whenever i've implemented it!

[sonarqubecloud]

Quality Gate passed

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

[Matthbo]

Looks good, just one comment about HoverInfo, but if there isnt a reusable one then no worries