Refactor messages.ts by removing class-transformer and JS classes (#3858)

* Fix gamma correction with HTML-based editable Text tool text

* Migrate simple, undecorated classes to types

* Remove TupleToVec2 transformation

* Remove @Transform from tooltips

* Cleanup: replace value.toString() with String(value) everywhere

* Convert documentId from string to bigint

* Migrate the rest of the easy @Transform/@Type decorations

* Migrate FillChoice

* Migrate WidgetDiffUpdate

* Migrate WidgetInstance

* Migrate away from classes that extend WidgetProps

* Remove class-transformer and all classes in messages.ts

* Migrate UI layout passing

* Remove dead code

* Remove unnecessary export and readonly prefixes

* Remove HSVA type

* Break out Color, Gradient, and FillChoice functions into a utility-functions file

* Move widget helper functions from messages.ts into a new utility-functions file; restructure type imports

* Reduce internal type defs

* Rename JsMessage to FrontendMessage

* Code review fixes

* Fix other usages

* Tidying up

editor/src/messages/tool/tool_messages/text_tool.rs

@@ -412,7 +412,7 @@ impl TextToolData {
 				text: editing_text.text.clone(),
 				line_height_ratio: editing_text.typesetting.line_height_ratio,
 				font_size: editing_text.typesetting.font_size,
-				color: editing_text.color.unwrap_or(Color::BLACK),
+				color: editing_text.color.map_or("#000000".to_string(), |color| format!("#{}", color.to_rgba_hex_srgb())),
 				font_data: font_cache.get(&editing_text.font).map(|(data, _)| data.clone()).unwrap_or_default(),
 				transform: editing_text.transform.to_cols_array(),
 				max_width: editing_text.typesetting.max_width,