[Techstack-beta] Download: select box style

[samueldr]

This is a bit of a tough one. This issue can also be deprioritized.

The TLDR is that select boxes were not styled in the previous implementation, and that the current new implementation style is a bit... raw...

So, I would recommend either:

• Apply some basic things like the usual rounding metrics, colours, etc
• Unstyling it until it is later "properly" designed

This report is a bit unfair given the previous implementation didn't do anything, though I'm reporting since some classes were used.