Update all docs links to 0.6, release 0.6 (#3225)

* update doc links to 0.6
* add new splash pages for crates
* update keyword features
* remove some unnecessary links

packages/desktop/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 description = "WebView renderer for Dioxus"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/DioxusLabs/dioxus/"
-homepage = "https://dioxuslabs.com/learn/0.5/getting_started"
+homepage = "https://dioxuslabs.com/learn/0.6/getting_started"
 keywords = ["dom", "ui", "gui", "react"]
 
 [dependencies]