Refactor module layout

data/ui/editor/work/part_row.blp

@@ -0,0 +1,21 @@
+using Gtk 4.0;
+using Adw 1;
+
+template $MusicusWorkEditorPartRow: Adw.ActionRow {
+  activatable: true;
+  activated => $edit() swapped;
+
+  Gtk.Image {
+    icon-name: "document-edit-symbolic";
+  }
+
+  Gtk.Button {
+    icon-name: "user-trash-symbolic";
+    valign: center;
+    clicked => $remove() swapped;
+
+    styles [
+      "flat"
+    ]
+  }
+}