Upgrade to Bulma v1

Closes #1438

https://bulma-v1-teklia.surge.sh

Two minor dependencies are not compatible:

• bulma-switch (https://github.com/Wikiki/bulma-switch/issues/85)
• bulma-tooltip (archived project)

TODO: Sass -> CSS + many fixes (multiprogressbar, color, theme) requiring to check the app page per page.