Update examples, add css

examples/generic_component.rs

@@ -1,6 +1,10 @@
-use std::fmt::Display;
+//! This example demonstrates how to create a generic component in Dioxus.
+//!
+//! Generic components can be useful when you want to create a component that renders differently depending on the type
+//! of data it receives. In this particular example, we're just using a type that implements `Display` and `PartialEq`,
 
 use dioxus::prelude::*;
+use std::fmt::Display;
 
 fn main() {
     launch_desktop(app);