🐛 Fix ITransformable error when path content is a plain vector

Coerce content to PathData in transform-content before dispatching
the ITransformable protocol, so shapes carrying a plain vector in
their :content field (legacy data, bool shapes, SVG imports) no
longer crash with 'No protocol method ITransformable.-transform
defined for type object'.

Signed-off-by: Andrey Antukh <niwi@niwi.nz>

common/src/app/common/types/path/segment.cljc

@@ -777,7 +777,7 @@
   content as PathData instance."
   [content transform]
   (if (some? transform)
-    (impl/-transform content transform)
+    (impl/-transform (impl/path-data content) transform)
     content))
 
 (defn move-content