Update graph UI and improve simplicity and robustness of sending graph and layer panel updates (#1564)

* WIP

* Fix loading the structure of layers

* Fix broken indents

* Remove debugging stuff

* Fix displaying errors and node graph UI fixes/improvements

* Fix compilation failure

---------

Co-authored-by: 0hypercube <0hypercube@gmail.com>

editor/src/messages/frontend/frontend_message.rs

@@ -1,4 +1,4 @@
-use super::utility_types::{FrontendDocumentDetails, FrontendImageData, MouseCursorIcon};
+use super::utility_types::{FrontendDocumentDetails, MouseCursorIcon};
 use crate::messages::layout::utility_types::widget_prelude::*;
 use crate::messages::portfolio::document::node_graph::{FrontendNode, FrontendNodeLink, FrontendNodeType};
 use crate::messages::portfolio::document::utility_types::layer_panel::{JsRawBuffer, LayerPanelEntry, RawBuffer};
@@ -172,12 +172,6 @@ pub enum FrontendMessage {
 		#[serde(rename = "setColorChoice")]
 		set_color_choice: Option<String>,
 	},
-	UpdateImageData {
-		#[serde(rename = "documentId")]
-		document_id: DocumentId,
-		#[serde(rename = "imageData")]
-		image_data: Vec<FrontendImageData>,
-	},
 	UpdateInputHints {
 		#[serde(rename = "hintData")]
 		hint_data: HintData,

editor/src/messages/frontend/utility_types.rs

@@ -13,13 +13,6 @@ pub struct FrontendDocumentDetails {
 	pub id: DocumentId,
 }
 
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize, specta::Type)]
-pub struct FrontendImageData {
-	pub mime: String,
-	#[serde(skip)]
-	pub image_data: std::sync::Arc<Vec<u8>>,
-}
-
 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, Serialize, Deserialize, specta::Type)]
 pub enum MouseCursorIcon {
 	#[default]