Migrate dialogs to Rust and add a New File dialog (#623)

* Migrate coming soon and about dialog to Rust

* Migrate confirm close and close all

* Migrate dialog error

* Improve keyboard navigation throughout UI

* Cleanup and fix panic dialog

* Reduce css spacing to better match old dialogs

* Add new document modal

* Fix crash when generating default name

* Populate rust about graphite data on startup

* Code review changes

* Move one more :focus CSS rule into App.vue

* Add a dialog message and move dialogs

* Split out keyboard input navigation from this branch

* Improvements including simplifying panic dialog code

Co-authored-by: Keavon Chambers <keavon@keavon.com>

editor/src/dialog/dialog_message.rs

@@ -0,0 +1,27 @@
+use crate::message_prelude::*;
+use serde::{Deserialize, Serialize};
+
+use super::NewDocumentDialogUpdate;
+
+#[remain::sorted]
+#[impl_message(Message, Dialog)]
+#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
+pub enum DialogMessage {
+	#[remain::unsorted]
+	#[child]
+	NewDocumentDialog(NewDocumentDialogUpdate),
+
+	CloseAllDocumentsWithConfirmation,
+	CloseDialogAndThen {
+		followup: Box<Message>,
+	},
+	DisplayDialogError {
+		title: String,
+		description: String,
+	},
+	RequestAboutGraphiteDialog,
+	RequestComingSoonDialog {
+		issue: Option<i32>,
+	},
+	RequestNewDocumentDialog,
+}