Implement "What We Do" section

[angela-tran]

• [x] Add accordion and the styles for it specified in Figma
• [x] Add signpost icon
  • export it from Figma as an SVG
  • can reference /about page's bike SVG to do positioning, etc.
• [x] Let's have a data file for the services - template iterates through the data when rendering the accordion sections
  • have a look at our current data files as examples: https://github.com/compilerla/compiler.la/tree/main/src/_data

Check against Desktop and Mobile mockups in Figma.

Screenshot of what's in scope:

Accordion styles: https://www.figma.com/design/2gq3WJFdRFDefyHcgFMUGt/compiler.la-design?node-id=3060-1555&t=7s7W3IMOpcaqYiJU-4