Docs: Clarify Why our App MUST Be Offline-First

[nelsonic]

@rubensdemelo 🇧🇷 (Dart/Flutter Expert & Friend of @dwyl)
recently asked an excellent question in a Tech Stack thread:
dwyl/technology-stack#93 (comment)

Q: Is your "non-negotiables" offline first approach documented?
Would like to deep dive into this topic.
I also read about CRDT algorithm.

Note: edited for clarity. Original:

Given that this relates to our Product (App) 📱
and this is where we're trying to capture as much detail on the Product, 📝
I intend to [attempt to] answer his questions here. 🤞
The focus in product-roadmap is on the benefit to the person using the App not the tech. 🎯 (i.e. non-technical ...)

The CRDT algo question will probably need technical deep-dive as Rubens suggests. 🧑‍💻 #technical
Because there's a lot we need to clarify so that people aren't "confused" or "lost" about what we're doing. 🤷‍♂️
But the perspective of the person using the App comes first. 🥇

It's on my list: 📋

Will get to this in the next couple of days (currently on family weekend so have limited desk time ...) ⏳