Implement custom Button component using Pressable

[sharnik]

In every project we end up creating a custom Button component. We can already do this at the level of our template.

Expected outcome

• Button is implemented using the Pressable primitive
• Button expects text label and/or icon
• We have a disabled state for non active buttons
• We handle the press event by changing opacity
• We offer two flavours: Primary (a button with clear border outline and a background colour) and Secondary (just text on transparent background, like we have currently "increment counter")
• Button accepts a style property to overwrite styles when needed (that allows us to easily create derivative button classes from it)

Notes

• Good guideline on component design for such a case: https://www.smashingmagazine.com/2023/01/key-good-component-design-selfishness/