Central config file for visual consistency

[jefft0]

Right now, in the development phase, many screens have hard-coded values for color, spacing, etc. After the UX flow is implemented, we should put visual design configuration in a centralized file, to support consistency.

[iuricmp]

Reference:

• UI Kit - https://www.sketch.com/s/f63aa308-1f82-498c-8019-530f3b846db9/symbols
• UI Kit Figma - https://www.figma.com/community/file/1527721578857867021