Change from dropdown to modal box

[YohannParis]

What

• fix #296

How

• Remove the dropdown element and use the Modal component.

Video

https://user-images.githubusercontent.com/636801/128081253-9ac729e6-f31f-42f2-9296-f3162fba8a57.mov

[RosaRomeroGomez]

A couple of comments/suggestions:

• Maybe we can add alt text or tooltip for the Run and Configuration buttons since we don't have labels there and that will be helpful for the user (we already have them for the save and reset buttons).
• I was thinking that the modal is quite small. Maybe we can put everything on the same row or have two columns, one for the auto-run checkbox and one for the rest. I was doing some testing in terms of width (don't pay attention to the layout) and I think this might be better. I'm using width: 40vw.

[YohannParis]

Maybe we can add alt text or tooltip for the Run and Configuration buttons since we don't have labels there and that will be helpful for the user (we already have them for the save and reset buttons).

I added a tooltip css feature to display tooltip that are not the title attribute.

https://user-images.githubusercontent.com/636801/128211633-5e90efac-e281-4cc3-a9b3-c21464e93f26.mov

[YohannParis]

I was thinking that the modal is quite small. Maybe we can put everything on the same row or have two columns, one for the auto-run checkbox and one for the rest. I was doing some testing in terms of width (don't pay attention to the layout) and I think this might be better. I'm using width: 40vw.

I updated the modal to be wider, to be around 40vw.