feat(layers): add layer management panel

input/index.ts

@@ -5,6 +5,8 @@ export {
 } from "./dom";
 export type { CommandKeybind, GlobalKeybindConsumer, Keybind, KeybindEvent, KeybindMap } from "./keyboard";
 export { handleKeybind, keybindFromEvent } from "./keyboard";
+export { findGroup, findLayerInfoInDocument, handleDeleteSelectionKey, resolveLayerDrop } from "./layers-panel";
+export type { LayerDropTarget, LayerInfo } from "./layers-panel";
 export { handleArtboardSelection } from "./selection";
 export { createTransformControlsInputController, hitTestArtboardTransformHandle } from "./transform-controls";
 export type { TransformControlsInputController } from "./transform-controls";