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/core-macro/src/props/mod.rs

@@ -1055,7 +1055,7 @@ Finally, call `.build()` to create the instance of `{name}`.
                 name: field_name, ..
             } = field;
             if *field_name == "key" {
-                return Err(Error::new_spanned(field_name, "Naming a prop `key` is not allowed because the name can conflict with the built in key attribute. See https://dioxuslabs.com/learn/0.5/reference/dynamic_rendering#rendering-lists for more information about keys"));
+                return Err(Error::new_spanned(field_name, "Naming a prop `key` is not allowed because the name can conflict with the built in key attribute. See https://dioxuslabs.com/learn/0.6/reference/dynamic_rendering#rendering-lists for more information about keys"));
             }
             let StructInfo {
                 ref builder_name, ..