Rework Guide (#486)

* Move getting started to Guide

* Clean up summary and getting started

* Shorten intro by moving stuff to individual platform docs

* Make intro even shorter, summarize features

* Further cleanup; move development-related docs to separate section

* Make `guide` a crate. Turn code samples into examples so that we can check if they compile

* Rewrite "Describing the UI":

* Focus on RSX syntax (interactivity covered in later chapters); make sure samples are tested; concise language

* Move some "special attribute" samples to the `examples` directory

* Simplify introduction to components

* Simplify introduction to component props

* Document Prop features; add code samples

* Simplify component children docs

* Interactivity: better introduction to events

* Hooks: better introduction

* Remove outdated doc

* Introducs use_ref

* Simplify User Input chapter

* Document event handler props

* Meme editor example

* Meme editor walkthrough

* Add dark mode example

* Guide for context; dark mode example

* Guide: custom hooks

* Guide: conditional rendering

* Guide: rendering lists

* Guide: rendering lists + keys

* Move remaining infor from Reference to guide

* Delete reference book

docs/guide/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "dioxus-guide"
+version = "0.0.1"
+edition = "2021"
+description = "Dioxus guide, including testable examples"
+license = "MIT/Apache-2.0"
+
+[dev-dependencies]
+dioxus = { path = "../..", features = ["desktop", "web", "ssr", "router", "fermi", "tui"] }
+serde = { version = "1.0.138", features=["derive"] }
+reqwest = { version = "0.11.11", features = ["json"] }
+tokio = { version = "1.19.2" , features=[]}