optimize ticket description/pricing styles

[manpenaloza]

this pr especially aims to optimize mobile appearance of the tickets section.

here's what I attempt to improve primarily using flexbox instead of floats:

note: all used !important flags were added due to not being overwritten by tito-tickets default styles being injected when the ticket widget is loaded.

[bebraw]

Deploy preview for react-finland processing.

Built with commit c8ad8ea192b2d937cde247f80baabe48e725a868

https://app.netlify.com/sites/react-finland/deploys/5a71938aa6188f2be2d22167

[bebraw]

Thanks. 👍