UI.9: preserve SoundCraft workflows with shared docking

Cargo.lock

@@ -782,6 +782,15 @@ dependencies = [
  "windows 0.54.0",
 ]
 
+[[package]]
+name = "craft-ui"
+version = "0.1.0"
+source = "git+https://github.com/storytold/craft-libs?rev=5c874d51eeb3de70e735c8ce87a59a7dedd47675#5c874d51eeb3de70e735c8ce87a59a7dedd47675"
+dependencies = [
+ "egui",
+ "serde",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.5.2"
@@ -3570,6 +3579,7 @@ dependencies = [
 name = "soundcraft-ui-egui"
 version = "0.4.0"
 dependencies = [
+ "craft-ui",
  "egui",
  "egui_kittest",
  "image",