Make `Command` implementations platform-specific

This allows us to introduce a platform-specific `Action` to both `iced_native`
and `iced_web` and remove the `Clipboard` from `Application::update` to maintain
purity.

Additionally, this should let us implement further actions to let users query
and modify the shell environment (e.g. window, clipboard, and more!)

1 files changed, 3 insertions, 7 deletions

diff --git a/examples/pokedex/src/main.rs b/examples/pokedex/src/main.rs
index da1d5d5d..fdf667cc 100644
--- a/examples/pokedex/src/main.rs
+++ b/examples/pokedex/src/main.rs
@@ -1,6 +1,6 @@
 use iced::{
-    button, futures, image, Align, Application, Button, Clipboard, Column,
-    Command, Container, Element, Length, Row, Settings, Text,
+    button, futures, image, Align, Application, Button, Column, Command,
+    Container, Element, Length, Row, Settings, Text,
 };
 
 pub fn main() -> iced::Result {
@@ -48,11 +48,7 @@ impl Application for Pokedex {
         format!("{} - Pokédex", subtitle)
     }
 
-    fn update(
-        &mut self,
-        message: Message,
-        _clipboard: &mut Clipboard,
-    ) -> Command<Message> {
+    fn update(&mut self, message: Message) -> Command<Message> {
         match message {
             Message::PokemonFound(Ok(pokemon)) => {
                 *self = Pokedex::Loaded {