Simplify the frontend code

[msm-code]

Feature Category

• Correctness
• User Interface / User Experience
• Performance
• Other (please explain) - maintenance

Describe the problem

When did the UI code get so complex? I must've looked the other way. We should investigate how to simplify it again, otherwise we will scare new contributors away from contributing their work.

Describe the solution you'd like

It's hard to give a quantitive solution, but there are 48 (!) javascript files and I find it hard to justify:

$ find -type f -name "*.js" | wc -l
48

Probably some of these could be inlined and/or combined into one?

Describe alternatives you've considered

Maybe I am wrong and the UI is just more complex than I rememver. I'm also not a frontend developer. But I suspect there is some overengineering involved here.