Adjust tooltips to adhere to 8px grid and make them more readable

What does this MR do?

Adjust tooltips to adhere to 8px grid and make them more readable

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

• Adjust tooltips to adhere to 8px grid
• Make them more readable, no longer have to squint your eyes to read them (slack has them using the default font-size as well)

Screenshots (if relevant)

old:

new:

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together

What are the relevant issue numbers?