✨ feat: bulma@0.9.4 - underline, padding/margin=auto, responsive button

[dionlarson]

Updates bulma from 0.9.2 to 0.9.4.

New features from bulma:

• New is-underlined class for underlined text and links
• New auto value for margin and padding helper classes
• Responsive buttons: the size of a button will change for each breakpoint

Improvements from bulma:

• Add is-normal size modifiers to .file and .content

Bugfixes from bulma:

• Use is-disabled class on disabled pagination anchor elements

Fixes #388.

[kennethnym]

Really appreciate your PR, I will review it tomorrow when I'm free.

[ollycrossley]

Did this ever need merging? or was it deemed unnecessary?